Title: Site error after updating plugin
Last modified: August 22, 2016

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# Site error after updating plugin

 *  Resolved [druedain](https://wordpress.org/support/users/druedain/)
 * (@druedain)
 * [12 years, 2 months ago](https://wordpress.org/support/topic/site-error-after-updating-plugin/)
 * WordPress 3.9.2 indicated there was an update for the all-in-one-event-calendar
   plugin our PTA website is using and after selecting update plugins… it looks 
   like there was an error message then I was unable to log into wordpress on the
   site… this is the error I get. Any help would be greatly appreciated!
 * Fatal error: require() [function.require]: Failed opening required ‘D:\Hosting\
   11650016\html\wp-content\plugins\all-in-one-event-calendar\vendor\lessphp\lessc.
   inc.php’ (include_path=’.;C:\php\pear’) in D:\Hosting\11650016\html\wp-content\
   plugins\all-in-one-event-calendar\lib\bootstrap\loader.php on line 88
 * [https://wordpress.org/plugins/all-in-one-event-calendar/](https://wordpress.org/plugins/all-in-one-event-calendar/)

Viewing 10 replies - 1 through 10 (of 10 total)

 *  [spyda1124](https://wordpress.org/support/users/spyda1124/)
 * (@spyda1124)
 * [12 years ago](https://wordpress.org/support/topic/site-error-after-updating-plugin/#post-5167321)
 * I’ve had this same issue. Has there been any update on this?
 *  [spyda1124](https://wordpress.org/support/users/spyda1124/)
 * (@spyda1124)
 * [12 years ago](https://wordpress.org/support/topic/site-error-after-updating-plugin/#post-5167322)
 * I get this error everytime.
 * Internal Server Error
 * The server encountered an internal error or misconfiguration and was unable to
   complete your request.
 * Please contact the server administrator, and inform them of the time the error
   occurred, and anything you might have done that may have caused the error.
 * More information about this error may be available in the server error log.
 *  [Benjamin](https://wordpress.org/support/users/bsokic/)
 * (@bsokic)
 * [12 years ago](https://wordpress.org/support/topic/site-error-after-updating-plugin/#post-5167323)
 * Hello druedain,
 * Please try this:
 * 1. Delete the file uninstall.php from the plugin directory that is currently 
   on the server (found under /wp-content/plugins/all-in-one-event-calendar). Deleting
   this file ensures that when you uninstall the current version of the plugin, 
   your event data will be preserved when you delete the plugin
    2. Deactivate the
   All-in-One Event Calendar using your WordPress Dashboard. 3. Delete the All-in-
   One Event Calendar using your WordPress Dashboard. 4. Access your database and
   go to table wp_option. Sort by field Option_name and delete all the entries that
   start with “ai1ec”, this will delete plugin settings but events will remain in
   the database. 5. Install the latest version of the plugin using the WordPress
   Dashboard. 6. Activate the plugin.
 *  [Benjamin](https://wordpress.org/support/users/bsokic/)
 * (@bsokic)
 * [12 years ago](https://wordpress.org/support/topic/site-error-after-updating-plugin/#post-5167324)
 * Hello spyda1124,
 * It seems that you have a problem with PHP memory limit, please increase the memory
   limit to 128MB or more if necessary. Open your wp-config.php which is located
   in the root WordPress directory. Then add the following line:
 *     ```
       define('WP_MAX_MEMORY_LIMIT', '128M');
       ini_set('memory_limit','128M');
       ```
   
 *  [cappy2](https://wordpress.org/support/users/cappy2/)
 * (@cappy2)
 * [11 years, 4 months ago](https://wordpress.org/support/topic/site-error-after-updating-plugin/#post-5167340)
 * Hi [@benjamin](https://wordpress.org/support/users/benjamin/)
 * Can you please tell me if this is still the actual way to reset your settings
   for the All-in-One Event Calendar and preserve the event data?
 * I’m using version 2.2.1 of the plugin.
 * > 1. Delete the file uninstall.php from the plugin directory that is currently
   > on the server (found under /wp-content/plugins/all-in-one-event-calendar). 
   > Deleting this file ensures that when you uninstall the current version of the
   > plugin, your event data will be preserved when you delete the plugin
   >  2. Deactivate
   > the All-in-One Event Calendar using your WordPress Dashboard. 3. Delete the
   > All-in-One Event Calendar using your WordPress Dashboard. 4. Access your database
   > and go to table wp_option. Sort by field Option_name and delete all the entries
   > that start with “ai1ec”, this will delete plugin settings but events will remain
   > in the database. 5. Install the latest version of the plugin using the WordPress
   > Dashboard. 6. Activate the plugin.
 * Grtz,
    Cappy
 *  [Benjamin](https://wordpress.org/support/users/bsokic/)
 * (@bsokic)
 * [11 years, 4 months ago](https://wordpress.org/support/topic/site-error-after-updating-plugin/#post-5167341)
 * Hi Cappy,
 * Yes, this is the safest way, the data will remain preserved and the settings 
   reset.
 *  [cappy2](https://wordpress.org/support/users/cappy2/)
 * (@cappy2)
 * [11 years, 4 months ago](https://wordpress.org/support/topic/site-error-after-updating-plugin/#post-5167342)
 * Hi Benjamin, Thanks for your reply and great to hear that this solutions is still
   working for the latest version of the calendar plugin (v2.2.1). Grtz, Cappy
 *  [Benjamin](https://wordpress.org/support/users/bsokic/)
 * (@bsokic)
 * [11 years, 4 months ago](https://wordpress.org/support/topic/site-error-after-updating-plugin/#post-5167343)
 * No problem, glad I could help.
 * Take care,
    Benjamin
 *  [cappy2](https://wordpress.org/support/users/cappy2/)
 * (@cappy2)
 * [11 years, 4 months ago](https://wordpress.org/support/topic/site-error-after-updating-plugin/#post-5167344)
 * Thanks for your help Benjamin but unfortunnaly this trick did not solve my problem
   i have with the plugin 🙁
 * I got the following error after trying to activate the plugin:
 * Fatal error: require(): Failed opening required ‘/home/domainname/public_html/
   wp-content/plugins/all-in-one-event-calendar/lib/cache/memory.php’ (include_path
   =’.:/usr/lib/php:/usr/local/lib/php’) in /home/domainname/public_html/wp-content/
   plugins/all-in-one-event-calendar/lib/bootstrap/loader.php on line 88
 * My WordPress version is v4.2.2.
 * Is there something else i can try?
 * Cappy
 *  [Benjamin](https://wordpress.org/support/users/bsokic/)
 * (@bsokic)
 * [11 years, 4 months ago](https://wordpress.org/support/topic/site-error-after-updating-plugin/#post-5167345)
 * Hi Cappy,
 * Please check your php memory limit, install this plugin and post back with what
   it reports: [https://wordpress.org/support/plugin/wp-memory-usage](https://wordpress.org/support/plugin/wp-memory-usage)

Viewing 10 replies - 1 through 10 (of 10 total)

 The topic ‘Site error after updating plugin’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/all-in-one-event-calendar.svg)
 * [Timely All-in-One Events Calendar](https://wordpress.org/plugins/all-in-one-event-calendar/)
 * [Support Threads](https://wordpress.org/support/plugin/all-in-one-event-calendar/)
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 * [Unresolved Topics](https://wordpress.org/support/plugin/all-in-one-event-calendar/unresolved/)
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 * 10 replies
 * 4 participants
 * Last reply from: [Benjamin](https://wordpress.org/support/users/bsokic/)
 * Last activity: [11 years, 4 months ago](https://wordpress.org/support/topic/site-error-after-updating-plugin/#post-5167345)
 * Status: resolved