Answers.Body: <p>This is a known issue with CiviCRM 5.1.1 that was patched in 5.1.2.   The details of the issue are here: <a href="https://github.com/civicrm/civicrm-core/blob/5.1/release-notes/5.1.2.md#synopsis" rel="nofollow noreferrer">https://github.com/civicrm/civicrm-core/blob/5.1/release-notes/5.1.2.md#synopsis</a></p>
  
  <p>Download the new version from <a href="https://civicrm.org/download" rel="nofollow noreferrer">https://civicrm.org/download</a> and update your site.   </p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2018-05-19T15:35:47.787Z
Answers.Text: thanks a lot - I wish I would have found it somewhere.
  I will try that in a minute and let you know if it worked.
  Best regards,
Answers.UserDisplayName: Ben
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2018-05-19T14:24:53.670Z
Answers.LastActivityDate: 2018-05-19T14:24:53.670Z
Answers.UserDisplayName: Kevin Cristiano
Body: <p>I have a new installed CiviCRM 5.1.1 property on my server.</p>
  
  <p>My current system configuration is:</p>
  
  <p>Wordpress 4.9.6</p>
  
  <p>The problem:
  I importet a few contacts but I realized that besides using the search function in the upper left corner and using custom reports I receive an error 500 and no results.</p>
  
  <p>For example, when I use contacts > find contacts I receive an Error 500 for the following URL:
  <a href="http://mydomain.de/wp-admin/admin.php?page=CiviCRM&amp;q=civicrm/contact/search" rel="nofollow noreferrer">http://mydomain.de/wp-admin/admin.php?page=CiviCRM&amp;q=civicrm/contact/search</a>
  in Wordpress Debug Mode:</p>
  
  <p>Fatal error: Uncaught Error: Call to undefined method CRM_Core_DAO::disableFullGroupByMode() in /var/www/vhosts/xxx.mydomain.de/wp-content/plugins/civicrm/civicrm/CRM/Contact/BAO/Query.php:4848 Stack trace: #0 /var/www/vhosts/xxx.mydomain.de/wp-content/plugins/civicrm/civicrm/CRM/Contact/Selector.php(1181): CRM_Contact_BAO_Query->searchQuery(NULL, NULL, NULL, false, false, true) #1 /var/www/vhosts/xxx.mydomain.de/wp-content/plugins/civicrm/civicrm/CRM/Utils/PagerAToZ.php(108): CRM_Contact_Selector->alphabetQuery() #2 /var/www/vhosts/xxx.mydomain.de/wp-content/plugins/civicrm/civicrm/CRM/Utils/PagerAToZ.php(136): CRM_Utils_PagerAToZ::getDynamicCharacters(Object(CRM_Contact_Selector), false) #3 /var/www/vhosts/xxx.mydomain.de/wp-content/plugins/civicrm/civicrm/CRM/Utils/PagerAToZ.php(52): CRM_Utils_PagerAToZ::createLinks(Object(CRM_Contact_Selector), NULL, false) #4 /var/www/vhosts/xxx.mydomain.de in /var/www/vhosts/xxx.mydomain.de/wp-content/plugins/civicrm/civicrm/CRM/Contact/BAO/Query.php on line 4848</p>
  
  <p>Could anybody please help with this issue?
  I was trying to fix it for some time now and searched the whole forum with no result or hint.
  Thanks a lot in advance.</p>
  
Tags: <wordpress><error><custom-search><error-page><advanced-search>
Title: HTTP Error 500 during search request - CiviCRM 5.1.1
ThreadText: # HTTP Error 500 during search request - CiviCRM 5.1.1
  
  (Asked by: username_0 on 2018-05-19)
  
  I have a new installed CiviCRM 5.1.1 property on my server.
  
  My current system configuration is:
  
  Wordpress 4.9.6
  
  The problem:
  I importet a few contacts but I realized that besides using the search function in the upper left corner and using custom reports I receive an error 500 and no results.
  
  For example, when I use contacts > find contacts I receive an Error 500 for the following URL:
  <http://mydomain.de/wp-admin/admin.php?page=CiviCRM&q=civicrm/contact/search>
  in Wordpress Debug Mode:
  
  Fatal error: Uncaught Error: Call to undefined method CRM\_Core\_DAO::disableFullGroupByMode() in /var/www/vhosts/xxx.mydomain.de/wp-content/plugins/civicrm/civicrm/CRM/Contact/BAO/Query.php:4848 Stack trace: #0 /var/www/vhosts/xxx.mydomain.de/wp-content/plugins/civicrm/civicrm/CRM/Contact/Selector.php(1181): CRM\_Contact\_BAO\_Query->searchQuery(NULL, NULL, NULL, false, false, true) #1 /var/www/vhosts/xxx.mydomain.de/wp-content/plugins/civicrm/civicrm/CRM/Utils/PagerAToZ.php(108): CRM\_Contact\_Selector->alphabetQuery() #2 /var/www/vhosts/xxx.mydomain.de/wp-content/plugins/civicrm/civicrm/CRM/Utils/PagerAToZ.php(136): CRM\_Utils\_PagerAToZ::getDynamicCharacters(Object(CRM\_Contact\_Selector), false) #3 /var/www/vhosts/xxx.mydomain.de/wp-content/plugins/civicrm/civicrm/CRM/Utils/PagerAToZ.php(52): CRM\_Utils\_PagerAToZ::createLinks(Object(CRM\_Contact\_Selector), NULL, false) #4 /var/www/vhosts/xxx.mydomain.de in /var/www/vhosts/xxx.mydomain.de/wp-content/plugins/civicrm/civicrm/CRM/Contact/BAO/Query.php on line 4848
  
  Could anybody please help with this issue?
  I was trying to fix it for some time now and searched the whole forum with no result or hint.
  Thanks a lot in advance.
  
  **Tags:** wordpress, error, custom-search, error-page, advanced-search
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2018-05-19. Score: 2 | Accepted answer
  
  This is a known issue with CiviCRM 5.1.1 that was patched in 5.1.2. The details of the issue are here: <https://github.com/civicrm/civicrm-core/blob/5.1/release-notes/5.1.2.md#synopsis>
  
  Download the new version from <https://civicrm.org/download> and update your site.
  
  > **Comments:**
  > **username_0**: thanks a lot - I wish I would have found it somewhere. I will try that in a minute and let you know if it worked. Best regards,  
  
  ---
  
  