Body: <p>I have access to Drupal and CiviCRM admin but for half the DRUPAL pages I get a white page. (apparently CiviCRM works fine).
  Something is crashing the website and I don't understand what.
  I still can access to Drupal Logs and they don't show anything special.
  I have no idea where to start from.</p>
  
  <p>What is unclear is that I have a drupal multisite functioning with sub folders /site1 /site2 and only 2 from 3 don't work anymore. So this issue is really related to some special parameters I can't find.</p>
  
  <p>Any help?</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2019-09-06T18:35:49.320Z
Comments.Text: Check PHP/apache/nginx error logs
Comments.UserDisplayName: Pradeep Nayak
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2019-09-06T18:37:00.317Z
Comments.Text: how? I have access to logs within CiviCRM and Drupal
Comments.UserDisplayName: Guillaume Sorel
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2019-09-06T18:56:36.050Z
Comments.Text: https://stackoverflow.com/questions/5127838/where-does-php-store-the-error-log-php5-apache-fastcgi-cpanel
Comments.UserDisplayName: Pradeep Nayak
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2019-09-06T19:01:23.277Z
Comments.Text: I don't have access to these files on my shared hosting :(
Comments.UserDisplayName: Guillaume Sorel
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2019-09-06T20:02:32.610Z
Comments.Text: Following this Drupal documentation page https://www.drupal.org/node/158043 I discovered that the issue is Fatal error: Cannot declare class PEAR, because the name is already in use in DRUPAL/sites/all/modules/civicrm/vendor/pear/pear-core-minimal/src/PEAR.php on line 84. Which module could need PEAR and create a conflict?
Comments.UserDisplayName: Guillaume Sorel
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2019-09-06T20:52:44.407Z
Comments.Text: After 10 hours of fighting it works again. Disabling the newly installed module directly inside phpmyadmin did the job.
Comments.UserDisplayName: Guillaume Sorel
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2019-09-09T10:02:35.687Z
Comments.Text: Check you dont have two CiviCRM modules running at the same time
Comments.UserDisplayName: Tony Horrocks
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2019-09-10T21:48:07.940Z
Comments.Text: @TonyHorrocks : thanks for your advice. I think there was a mix of 2 CiviCRM modules running + some conflicts with some Drupal module using PEAR.
Comments.UserDisplayName: Guillaume Sorel
Tags: <drupal>
Title: Site is down on DRUPAL 7
ThreadText: # Site is down on DRUPAL 7
  
  (Asked by: username_0 on 2019-09-06)
  
  I have access to Drupal and CiviCRM admin but for half the DRUPAL pages I get a white page. (apparently CiviCRM works fine).
  Something is crashing the website and I don't understand what.
  I still can access to Drupal Logs and they don't show anything special.
  I have no idea where to start from.
  
  What is unclear is that I have a drupal multisite functioning with sub folders /site1 /site2 and only 2 from 3 don't work anymore. So this issue is really related to some special parameters I can't find.
  
  Any help?
  
  **Tags:** drupal
  
  > **Comments:**
  > **username_1**: Check PHP/apache/nginx error logs  
  > **username_0**: how? I have access to logs within CiviCRM and Drupal  
  > **username_1**: https://stackoverflow.com/questions/5127838/where-does-php-store-the-error-log-php5-apache-fastcgi-cpanel  
  > **username_0**: I don't have access to these files on my shared hosting :(  
  > **username_0**: Following this Drupal documentation page https://www.drupal.org/node/158043 I discovered that the issue is Fatal error: Cannot declare class PEAR, because the name is already in use in DRUPAL/sites/all/modules/civicrm/vendor/pear/pear-core-minimal/src/PEAR.php on line 84. Which module could need PEAR and create a conflict?  
  > **username_0**: After 10 hours of fighting it works again. Disabling the newly installed module directly inside phpmyadmin did the job.  
  > **username_2**: Check you dont have two CiviCRM modules running at the same time  
  > **username_0**: @TonyHorrocks : thanks for your advice. I think there was a mix of 2 CiviCRM modules running + some conflicts with some Drupal module using PEAR.  
  
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  ## 0 answers
  
  