Answers.Body: <p>the problem was inconsistency in the civicrm_uf_group_en_US view I recreated the view based on another installation including the missing field 'frontend_title'. </p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2018-07-20T15:07:43.700Z
Answers.Text: Hi Stijn - I think I just his this bug on a side post upgrade to 5.3.1 - can you please expand your answer a bit on how you fixed this?
Answers.UserDisplayName: KarinG - Semper IT
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2018-07-20T16:11:59.347Z
Answers.Text: Of course only if you have the same database error as we did. But what we did  is adapt the views for the languages we use, based on another install. Is suppose we should be able to find this view in the sql from the installation files as well. But something along these lines:
  (damn can't add more characters)
Answers.UserDisplayName: stijn
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2018-07-20T16:24:18.430Z
Answers.Text: what you need to find is a the code to create the view civicrm_uf_group_en_US (of course adapt to your language)
Answers.UserDisplayName: stijn
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2018-07-20T17:37:09.570Z
Answers.Text: This would do a complete rebuild of the views;
  drush cvapi System.rebuildmultilingualschema
Answers.UserDisplayName: KarinG - Semper IT
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2018-07-23T13:37:12.293Z
Answers.Text: Karin, you are awesome, well at least this solution is ;-)
  Thank you very much!
Answers.UserDisplayName: stijn
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2018-07-19T09:54:02.427Z
Answers.LastActivityDate: 2018-07-19T09:54:02.427Z
Answers.UserDisplayName: stijn
Answers.Body: <p>Generically: You have a Javascript error, so I would definitely consult the <a href="https://forum.civicrm.org/index.php?topic=35850.0" rel="nofollow noreferrer">Troubleshoot Javascript errors</a> post which describes additional steps to try.</p>
  
  <p>That said - I know what your problem is, and would like to give a step-by-step of how I worked it out.</p>
  
  <p>I see in your second line that you have a syntax error of some sort.  A syntax error in JS will generally disable all the following JS on the page, which will lead to this issue.  So ignore everything after line 2, that will get fixed when you find the syntax error.</p>
  
  <p>From the SyntaxError, I can see the problem is on line 1 of the <code>en_US</code> file.</p>
  
  <p>So I open my browser's developer tools (F12).  Then I go to the "Network" tab, filter by JS, and reload the page.  I look for the en_US file. I right-click and select "Open in New Tab" (see screenshot below).</p>
  
  <p>What you SHOULD see is a JavaScript file that tells CiviCRM how to load the correct translations for certain fields.  What YOU will see is a first line with <code>&lt;[Learn More]</code> on it.</p>
  
  <p>The reason that's happening is you have some CMS plugin/module that's injecting data on to every page.  </p>
  
  <p><a href="https://i.sstatic.net/RDgiV.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/RDgiV.png" alt="enter image description here"></a></p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2018-07-19T05:19:22.597Z
Answers.Text: thank you for this. Looking a bit further:
  the file trying to load is domain.tld/civicrm/ajax/l10n-js/en_US. Now I see there a database error: CiviCRM_API3_Exception: "DB Error: no such field. from civicrm/CRM/Core/BAO/UFGroup.php(3339)
Answers.UserDisplayName: stijn
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2018-07-18T21:13:22.660Z
Answers.LastActivityDate: 2018-07-18T21:13:22.660Z
Answers.UserDisplayName: Jon G - Megaphone Tech
Body: <p>so I get this error in console</p>
  
  <pre><code>JQMIGRATE: Migrate is installed, version 1.4.1 jquery-migrate.min.js:2:542
  SyntaxError: expected expression, got '&lt;'[Learn More] en_US:1
  Error: CRM.url called before initialization Common.js:1605:16
  Error: tplURL is undefined
  CRM.url@https://domain.tld/sites/all/modules/civicrm/js/crm.ajax.js?r=rtOiJ:26:9
  CRM.api3@https://domain.tld/sites/all/modules/civicrm/js/crm.ajax.js?r=rtOiJ:68:12
  crmApi@https://domain.tld/civicrm/asset/builder?an=angular-modules.js&amp;ap=TU%2B7CsMwDPyXzKZLt25pSrcuCfkANRaOQJGDLYXS0n%2Bv7anLPeAO7j7dFr0x5u7SgQRjSHdinHeO4N2Stn7fG6nCsm4o2pxpzHBg1cNLKt3OFR9ATBL%2BZH%2BtZsQcLS2tMEZTvJJ4TNXO1FCJnSfgGCZMB5WohJYsPIGQ0htdVlDLOwR0Rqcck8KTm7bSz86krvLDWq6US98f&amp;ad=cee702615cc276585c8e78ed78bbaa0d:4866:13
  next@https://domain.tld/civicrm/asset/builder?an=angular-modules.js&amp;ap=TU%2B7CsMwDPyXzKZLt25pSrcuCfkANRaOQJGDLYXS0n%2Bv7anLPeAO7j7dFr0x5u7SgQRjSHdinHeO4N2Stn7fG6nCsm4o2pxpzHBg1cNLKt3OFR9ATBL%2BZH%2BtZsQcLS2tMEZTvJJ4TNXO1FCJnSfgGCZMB5WohJYsPIGQ0htdVlDLOwR0Rqcck8KTm7bSz86krvLDWq6US98f&amp;ad=cee702615cc276585c8e78ed78bbaa0d:5040:9
  enqueue@https://domain.tld/civicrm/asset/builder?an=angular-modules.js&amp;ap=TU%2B7CsMwDPyXzKZLt25pSrcuCfkANRaOQJGDLYXS0n%2Bv7anLPeAO7j7dFr0x5u7SgQRjSHdinHeO4N2Stn7fG6nCsm4o2pxpzHBg1cNLKt3OFR9ATBL%2BZH%2BtZsQcLS2tMEZTvJJ4TNXO1FCJnSfgGCZMB5WohJYsPIGQ0htdVlDLOwR0Rqcck8KTm7bSz86krvLDWq6US98f&amp;ad=cee702615cc276585c8e78ed78bbaa0d:5057:11
  save@https://domain.tld/civicrm/asset/builder?an=angular-modules.js&amp;ap=TU%2B7CsMwDPyXzKZLt25pSrcuCfkANRaOQJGDLYXS0n%2Bv7anLPeAO7j7dFr0x5u7SgQRjSHdinHeO4N2Stn7fG6nCsm4o2pxpzHBg1cNLKt3OFR9ATBL%2BZH%2BtZsQcLS2tMEZTvJJ4TNXO1FCJnSfgGCZMB5WohJYsPIGQ0htdVlDLOwR0Rqcck8KTm7bSz86krvLDWq6US98f&amp;ad=cee702615cc276585c8e78ed78bbaa0d:2474:16
  selectedMail@https://domain.tld/civicrm/asset/builder?an=angular-modules.js&amp;ap=TU%2B7CsMwDPyXzKZLt25pSrcuCfkANRaOQJGDLYXS0n%2Bv7anLPeAO7j7dFr0x5u7SgQRjSHdinHeO4N2Stn7fG6nCsm4o2pxpzHBg1cNLKt3OFR9ATBL%2BZH%2BtZsQcLS2tMEZTvJJ4TNXO1FCJnSfgGCZMB5WohJYsPIGQ0htdVlDLOwR0Rqcck8KTm7bSz86krvLDWq6US98f&amp;ad=cee702615cc276585c8e78ed78bbaa0d:615:20
  invoke@https://domain.tld/sites/all/modules/civicrm/bower_components/angular/angular.min.js?r=rtOiJ:42:6
  m/&lt;@https://domain.tld/civicrm/asset/builder?an=angular-modules.js&amp;ap=TU%2B7CsMwDPyXzKZLt25pSrcuCfkANRaOQJGDLYXS0n%2Bv7anLPeAO7j7dFr0x5u7SgQRjSHdinHeO4N2Stn7fG6nCsm4o2pxpzHBg1cNLKt3OFR9ATBL%2BZH%2BtZsQcLS2tMEZTvJJ4TNXO1FCJnSfgGCZMB5WohJYsPIGQ0htdVlDLOwR0Rqcck8KTm7bSz86krvLDWq6US98f&amp;ad=cee702615cc276585c8e78ed78bbaa0d:5334:32
  q@https://domain.tld/sites/all/modules/civicrm/bower_components/angular/angular.min.js?r=rtOiJ:8:57
  m@https://domain.tld/civicrm/asset/builder?an=angular-modules.js&amp;ap=TU%2B7CsMwDPyXzKZLt25pSrcuCfkANRaOQJGDLYXS0n%2Bv7anLPeAO7j7dFr0x5u7SgQRjSHdinHeO4N2Stn7fG6nCsm4o2pxpzHBg1cNLKt3OFR9ATBL%2BZH%2BtZsQcLS2tMEZTvJJ4TNXO1FCJnSfgGCZMB5WohJYsPIGQ0htdVlDLOwR0Rqcck8KTm7bSz86krvLDWq6US98f&amp;ad=cee702615cc276585c8e78ed78bbaa0d:5333:479
  e/&lt;@https://domain.tld/sites/all/modules/civicrm/bower_components/angular/angular.min.js?r=rtOiJ:132:434
  $eval@https://domain.tld/sites/all/modules/civicrm/bower_components/angular/angular.min.js?r=rtOiJ:147:65
  $digest@https://domain.tld/sites/all/modules/civicrm/bower_components/angular/angular.min.js?r=rtOiJ:144:123
  $apply@https://domain.tld/sites/all/modules/civicrm/bower_components/angular/angular.min.js?r=rtOiJ:147:361
  c/&lt;@https://domain.tld/sites/all/modules/civicrm/bower_components/angular/angular.min.js?r=rtOiJ:21:115
  invoke@https://domain.tld/sites/all/modules/civicrm/bower_components/angular/angular.min.js?r=rtOiJ:42:6
  c@https://domain.tld/sites/all/modules/civicrm/bower_components/angular/angular.min.js?r=rtOiJ:21:36
  Gc@https://domain.tld/sites/all/modules/civicrm/bower_components/angular/angular.min.js?r=rtOiJ:21:332
  se@https://domain.tld/sites/all/modules/civicrm/bower_components/angular/angular.min.js?r=rtOiJ:20:1
  @https://domain.tld/sites/all/modules/civicrm/bower_components/angular/angular.min.js?r=rtOiJ:323:54
  i@https://domain.tld/sites/all/modules/civicrm/bower_components/jquery/dist/jquery.min.js?r=rtOiJ:2:27444
  fireWith@https://domain.tld/sites/all/modules/civicrm/bower_components/jquery/dist/jquery.min.js?r=rtOiJ:2:28213
  ready@https://domain.tld/sites/all/modules/civicrm/bower_components/jquery/dist/jquery.min.js?r=rtOiJ:2:30004
  K@https://domain.tld/sites/all/modules/civicrm/bower_components/jquery/dist/jquery.min.js?r=rtOiJ:2:30366
  angular.js:14199:17
  f/&lt;
  angular.js:14199:17
  vf/this.$get&lt;/&lt;
  angular.js:10707:6
  e/&lt;
  angular.js:16704:8
  $eval
  angular.js:17994:15
  $digest
  angular.js:17808:14
  $apply
  angular.js:18102:12
  c/&lt;
  angular.js:1812:8
  invoke
  angular.js:4771:15
  c
  angular.js:1810:4
  Gc
  angular.js:1830:11
  se
  angular.js:1715:4
  &lt;anonymous&gt;
  angular.js:32616:4
  i
  https://domain.tld/sites/all/modules/civicrm/bower_components/jquery/dist/jquery.min.js:2:27444
  fireWith
  https://domain.tld/sites/all/modules/civicrm/bower_components/jquery/dist/jquery.min.js:2:28213
  ready
  https://domain.tld/sites/all/modules/civicrm/bower_components/jquery/dist/jquery.min.js:2:30004
  K
  https://domain.tld/sites/all/modules/civicrm/bower_components/jquery/dist/jquery.min.js:2:30366
  </code></pre>
  
  <p>checked permissions, double checked resource url's, disabled asset caching, removed all browser cache, checked different browsers.... 
  And not sure where to go next... </p>
  
  <p>Update: it was not a duplicate. the javascript did not load because of database error</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2018-07-18T20:31:19.283Z
Comments.Text: excuse me I had the problem with 5.2.1, tried upgrading to 5.3.0 but no luck. Using drupal 7.59
Comments.UserDisplayName: stijn
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2018-07-18T21:11:24.383Z
Comments.Text: Possible duplicate of [How can I best debug this JS issue?](https://civicrm.stackexchange.com/questions/5084/how-can-i-best-debug-this-js-issue)
Comments.UserDisplayName: Jon G - Megaphone Tech
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2018-07-18T21:12:22.007Z
Comments.Text: Welcome to Stack Exchange! You asked this question really well with all the important details.  I'm flagging it as a duplicate, but that's not a reflection on you - this is really solid, and it's not obvious it's a duplicate.  I'm posting a more detailed answer on the original: https://civicrm.stackexchange.com/questions/5084/how-can-i-best-debug-this-js-issue
Comments.UserDisplayName: Jon G - Megaphone Tech
Tags: <javascript>
Title: status page not loading nor new mailing page
ThreadText: # status page not loading nor new mailing page
  
  (Asked by: username_0 on 2018-07-18)
  
  so I get this error in console
  
  ```
  JQMIGRATE: Migrate is installed, version 1.4.1 jquery-migrate.min.js:2:542
  SyntaxError: expected expression, got '<'[Learn More] en_US:1
  Error: CRM.url called before initialization Common.js:1605:16
  Error: tplURL is undefined
  CRM.url@https://domain.tld/sites/all/modules/civicrm/js/crm.ajax.js?r=rtOiJ:26:9
  CRM.api3@https://domain.tld/sites/all/modules/civicrm/js/crm.ajax.js?r=rtOiJ:68:12
  crmApi@https://domain.tld/civicrm/asset/builder?an=angular-modules.js&ap=TU%2B7CsMwDPyXzKZLt25pSrcuCfkANRaOQJGDLYXS0n%2Bv7anLPeAO7j7dFr0x5u7SgQRjSHdinHeO4N2Stn7fG6nCsm4o2pxpzHBg1cNLKt3OFR9ATBL%2BZH%2BtZsQcLS2tMEZTvJJ4TNXO1FCJnSfgGCZMB5WohJYsPIGQ0htdVlDLOwR0Rqcck8KTm7bSz86krvLDWq6US98f&ad=cee702615cc276585c8e78ed78bbaa0d:4866:13
  next@https://domain.tld/civicrm/asset/builder?an=angular-modules.js&ap=TU%2B7CsMwDPyXzKZLt25pSrcuCfkANRaOQJGDLYXS0n%2Bv7anLPeAO7j7dFr0x5u7SgQRjSHdinHeO4N2Stn7fG6nCsm4o2pxpzHBg1cNLKt3OFR9ATBL%2BZH%2BtZsQcLS2tMEZTvJJ4TNXO1FCJnSfgGCZMB5WohJYsPIGQ0htdVlDLOwR0Rqcck8KTm7bSz86krvLDWq6US98f&ad=cee702615cc276585c8e78ed78bbaa0d:5040:9
  enqueue@https://domain.tld/civicrm/asset/builder?an=angular-modules.js&ap=TU%2B7CsMwDPyXzKZLt25pSrcuCfkANRaOQJGDLYXS0n%2Bv7anLPeAO7j7dFr0x5u7SgQRjSHdinHeO4N2Stn7fG6nCsm4o2pxpzHBg1cNLKt3OFR9ATBL%2BZH%2BtZsQcLS2tMEZTvJJ4TNXO1FCJnSfgGCZMB5WohJYsPIGQ0htdVlDLOwR0Rqcck8KTm7bSz86krvLDWq6US98f&ad=cee702615cc276585c8e78ed78bbaa0d:5057:11
  save@https://domain.tld/civicrm/asset/builder?an=angular-modules.js&ap=TU%2B7CsMwDPyXzKZLt25pSrcuCfkANRaOQJGDLYXS0n%2Bv7anLPeAO7j7dFr0x5u7SgQRjSHdinHeO4N2Stn7fG6nCsm4o2pxpzHBg1cNLKt3OFR9ATBL%2BZH%2BtZsQcLS2tMEZTvJJ4TNXO1FCJnSfgGCZMB5WohJYsPIGQ0htdVlDLOwR0Rqcck8KTm7bSz86krvLDWq6US98f&ad=cee702615cc276585c8e78ed78bbaa0d:2474:16
  selectedMail@https://domain.tld/civicrm/asset/builder?an=angular-modules.js&ap=TU%2B7CsMwDPyXzKZLt25pSrcuCfkANRaOQJGDLYXS0n%2Bv7anLPeAO7j7dFr0x5u7SgQRjSHdinHeO4N2Stn7fG6nCsm4o2pxpzHBg1cNLKt3OFR9ATBL%2BZH%2BtZsQcLS2tMEZTvJJ4TNXO1FCJnSfgGCZMB5WohJYsPIGQ0htdVlDLOwR0Rqcck8KTm7bSz86krvLDWq6US98f&ad=cee702615cc276585c8e78ed78bbaa0d:615:20
  invoke@https://domain.tld/sites/all/modules/civicrm/bower_components/angular/angular.min.js?r=rtOiJ:42:6
  m/<@https://domain.tld/civicrm/asset/builder?an=angular-modules.js&ap=TU%2B7CsMwDPyXzKZLt25pSrcuCfkANRaOQJGDLYXS0n%2Bv7anLPeAO7j7dFr0x5u7SgQRjSHdinHeO4N2Stn7fG6nCsm4o2pxpzHBg1cNLKt3OFR9ATBL%2BZH%2BtZsQcLS2tMEZTvJJ4TNXO1FCJnSfgGCZMB5WohJYsPIGQ0htdVlDLOwR0Rqcck8KTm7bSz86krvLDWq6US98f&ad=cee702615cc276585c8e78ed78bbaa0d:5334:32
  q@https://domain.tld/sites/all/modules/civicrm/bower_components/angular/angular.min.js?r=rtOiJ:8:57
  m@https://domain.tld/civicrm/asset/builder?an=angular-modules.js&ap=TU%2B7CsMwDPyXzKZLt25pSrcuCfkANRaOQJGDLYXS0n%2Bv7anLPeAO7j7dFr0x5u7SgQRjSHdinHeO4N2Stn7fG6nCsm4o2pxpzHBg1cNLKt3OFR9ATBL%2BZH%2BtZsQcLS2tMEZTvJJ4TNXO1FCJnSfgGCZMB5WohJYsPIGQ0htdVlDLOwR0Rqcck8KTm7bSz86krvLDWq6US98f&ad=cee702615cc276585c8e78ed78bbaa0d:5333:479
  e/<@https://domain.tld/sites/all/modules/civicrm/bower_components/angular/angular.min.js?r=rtOiJ:132:434
  $eval@https://domain.tld/sites/all/modules/civicrm/bower_components/angular/angular.min.js?r=rtOiJ:147:65
  $digest@https://domain.tld/sites/all/modules/civicrm/bower_components/angular/angular.min.js?r=rtOiJ:144:123
  $apply@https://domain.tld/sites/all/modules/civicrm/bower_components/angular/angular.min.js?r=rtOiJ:147:361
  c/<@https://domain.tld/sites/all/modules/civicrm/bower_components/angular/angular.min.js?r=rtOiJ:21:115
  invoke@https://domain.tld/sites/all/modules/civicrm/bower_components/angular/angular.min.js?r=rtOiJ:42:6
  c@https://domain.tld/sites/all/modules/civicrm/bower_components/angular/angular.min.js?r=rtOiJ:21:36
  Gc@https://domain.tld/sites/all/modules/civicrm/bower_components/angular/angular.min.js?r=rtOiJ:21:332
  se@https://domain.tld/sites/all/modules/civicrm/bower_components/angular/angular.min.js?r=rtOiJ:20:1
  @https://domain.tld/sites/all/modules/civicrm/bower_components/angular/angular.min.js?r=rtOiJ:323:54
  i@https://domain.tld/sites/all/modules/civicrm/bower_components/jquery/dist/jquery.min.js?r=rtOiJ:2:27444
  fireWith@https://domain.tld/sites/all/modules/civicrm/bower_components/jquery/dist/jquery.min.js?r=rtOiJ:2:28213
  ready@https://domain.tld/sites/all/modules/civicrm/bower_components/jquery/dist/jquery.min.js?r=rtOiJ:2:30004
  K@https://domain.tld/sites/all/modules/civicrm/bower_components/jquery/dist/jquery.min.js?r=rtOiJ:2:30366
  angular.js:14199:17
  f/<
  angular.js:14199:17
  vf/this.$get</<
  angular.js:10707:6
  e/<
  angular.js:16704:8
  $eval
  angular.js:17994:15
  $digest
  angular.js:17808:14
  $apply
  angular.js:18102:12
  c/<
  angular.js:1812:8
  invoke
  angular.js:4771:15
  c
  angular.js:1810:4
  Gc
  angular.js:1830:11
  se
  angular.js:1715:4
  <anonymous>
  angular.js:32616:4
  i
  https://domain.tld/sites/all/modules/civicrm/bower_components/jquery/dist/jquery.min.js:2:27444
  fireWith
  https://domain.tld/sites/all/modules/civicrm/bower_components/jquery/dist/jquery.min.js:2:28213
  ready
  https://domain.tld/sites/all/modules/civicrm/bower_components/jquery/dist/jquery.min.js:2:30004
  K
  https://domain.tld/sites/all/modules/civicrm/bower_components/jquery/dist/jquery.min.js:2:30366
  
  ```
  
  checked permissions, double checked resource url's, disabled asset caching, removed all browser cache, checked different browsers....
  And not sure where to go next...
  
  Update: it was not a duplicate. the javascript did not load because of database error
  
  **Tags:** javascript
  
  > **Comments:**
  > **username_0**: excuse me I had the problem with 5.2.1, tried upgrading to 5.3.0 but no luck. Using drupal 7.59  
  > **username_1**: Possible duplicate of [How can I best debug this JS issue?](https://civicrm.stackexchange.com/questions/5084/how-can-i-best-debug-this-js-issue)  
  > **username_1**: Welcome to Stack Exchange! You asked this question really well with all the important details.  I'm flagging it as a duplicate, but that's not a reflection on you - this is really solid, and it's not obvious it's a duplicate.  I'm posting a more detailed answer on the original: https://civicrm.stackexchange.com/questions/5084/how-can-i-best-debug-this-js-issue  
  
  ---
  
  ## 2 answers
  
  ### Answer by username_0 on 2018-07-19. Score: 1 | Accepted answer
  
  the problem was inconsistency in the civicrm\_uf\_group\_en\_US view I recreated the view based on another installation including the missing field 'frontend\_title'.
  
  > **Comments:**
  > **username_2**: Hi username_0 - I think I just his this bug on a side post upgrade to 5.3.1 - can you please expand your answer a bit on how you fixed this?  
  > **username_0**: Of course only if you have the same database error as we did. But what we did  is adapt the views for the languages we use, based on another install. Is suppose we should be able to find this view in the sql from the installation files as well. But something along these lines: (damn can't add more characters)  
  > **username_0**: what you need to find is a the code to create the view civicrm_uf_group_en_US (of course adapt to your language)  
  > **username_2**: This would do a complete rebuild of the views; drush cvapi System.rebuildmultilingualschema  
  > **username_0**: Karin, you are awesome, well at least this solution is ;-) Thank you very much!  
  
  ---
  
  ### Answer by username_1 on 2018-07-18. Score: 2
  
  Generically: You have a Javascript error, so I would definitely consult the [Troubleshoot Javascript errors](https://forum.civicrm.org/index.php?topic=35850.0) post which describes additional steps to try.
  
  That said - I know what your problem is, and would like to give a step-by-step of how I worked it out.
  
  I see in your second line that you have a syntax error of some sort. A syntax error in JS will generally disable all the following JS on the page, which will lead to this issue. So ignore everything after line 2, that will get fixed when you find the syntax error.
  
  From the SyntaxError, I can see the problem is on line 1 of the `en_US` file.
  
  So I open my browser's developer tools (F12). Then I go to the "Network" tab, filter by JS, and reload the page. I look for the en\_US file. I right-click and select "Open in New Tab" (see screenshot below).
  
  What you SHOULD see is a JavaScript file that tells CiviCRM how to load the correct translations for certain fields. What YOU will see is a first line with `<[Learn More]` on it.
  
  The reason that's happening is you have some CMS plugin/module that's injecting data on to every page.
  
  [![enter image description here](https://i.sstatic.net/RDgiV.png)](https://i.sstatic.net/RDgiV.png)
  
  > **Comments:**
  > **username_0**: thank you for this. Looking a bit further: the file trying to load is domain.tld/civicrm/ajax/l10n-js/en_US. Now I see there a database error: CiviCRM_API3_Exception: "DB Error: no such field. from civicrm/CRM/Core/BAO/UFGroup.php(3339)  
  
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