Title: Fatal Error; no solution
Last modified: October 8, 2016

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# Fatal Error; no solution

 *  Resolved [seamusberkeley](https://wordpress.org/support/users/seamusberkeley/)
 * (@seamusberkeley)
 * [9 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-no-solution/)
 * Hello,
 * Keep getting the fatal error message:
 * Fatal Error: This should not happen but is most often caused by other plugins.
   Try first the option “Optimizer” in WP Staging->Settings and try again. If this
   does not help, enable wordpress debug mode to find out which plugin is causing
   this: 500 HTTP/2.0 500
 * Tested several workarounds including turning-off all plug-ins (except wp-staging
   and WP Staging Optimizer) from within wp-staging and wp itself. Same result with
   these tests.
 * Turned on debug and received these errors:
 * Warning: include(/home/seamusbe/public_html/wp-content/advanced-cache.php): failed
   to open stream: No such file or directory in /home/seamusbe/public_html/wp-settings.
   php on line 86
 * Warning: include(): Failed opening ‘/home/seamusbe/public_html/wp-content/advanced-
   cache.php’ for inclusion (include_path=’.:/usr/local/php56/pear’) in /home/seamusbe/
   public_html/wp-settings.php on line 86
 * Notice: has_cap was called with an argument that is deprecated since version 
   2.0.0! Usage of user levels by plugins and themes is deprecated. Use roles and
   capabilities instead. in /home/seamusbe/public_html/wp-includes/functions.php
   on line 3891
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/seamusbe/public_html/wp-settings.php:86) in /home/seamusbe/public_html/
   wp-includes/pluggable.php on line 1174
 * Any ideas how to solve?
 * Appreciate your help,
 * Seamus

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [salamzaban](https://wordpress.org/support/users/salamzaban/)
 * (@salamzaban)
 * [9 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-no-solution/#post-8438298)
 * Hello [@seamusberkeley](https://wordpress.org/support/users/seamusberkeley/)
 * How did you solve the erroe?
 * Thanks
 *  Thread Starter [seamusberkeley](https://wordpress.org/support/users/seamusberkeley/)
 * (@seamusberkeley)
 * [9 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-no-solution/#post-8441580)
 * Hello [@salamzaban](https://wordpress.org/support/users/salamzaban/),
 * The wordpress installation had been at the root directory. Made a subdirectory,
   moved the wp install there, reset WP Staging for the new directory and it worked
   perfectly.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Fatal Error; no solution’ is closed to new replies.

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 * 2 replies
 * 2 participants
 * Last reply from: [seamusberkeley](https://wordpress.org/support/users/seamusberkeley/)
 * Last activity: [9 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-no-solution/#post-8441580)
 * Status: resolved