Title: 500 Error after update – missing file
Last modified: August 21, 2016

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# 500 Error after update – missing file

 *  Resolved [Puck](https://wordpress.org/support/users/puck/)
 * (@puck)
 * [12 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-after-update-missing-file/)
 * Upgraded today and instantly got a 500 error and the site became unresponsive.
 * Moved the-event-calendar out of the plugins folder and was able to get back in
   to the back-end. Grabbed a fresh copy of the updated plugin and tried to reactivate
   and got this:
 * `Warning: require_once(/var/www/html/wp-content/plugins/the-events-calendar/public/
   template-tags/calendar.php): failed to open stream: No such file or directory
   in /var/www/html/wp-content/plugins/the-events-calendar/lib/the-events-calendar.
   class.php on line 164 Fatal error: require_once(): Failed opening required '/
   var/www/html/wp-content/plugins/the-events-calendar/public/template-tags/calendar.
   php' (include_path='.:/usr/share/pear:/usr/share/php') in /var/www/html/wp-content/
   plugins/the-events-calendar/lib/the-events-calendar.class.php on line 164`
 * There is no “calendar.php” in the public/template-tags folder so this is a pretty
   glaring server-crashing bug.
 * [http://wordpress.org/extend/plugins/the-events-calendar/](http://wordpress.org/extend/plugins/the-events-calendar/)
 * Update RESOLVED: poked around and found that that file shouldn’t even be called
   which reminded me I should clear my caches after the upgrade. Cleared my OPCode
   and nginx caches and was able to successfully re-activate the plugin.
 * I’ll leave this here for anyone else having the same problem.

Viewing 5 replies - 1 through 5 (of 5 total)

 *  [Shane Pearlman](https://wordpress.org/support/users/shanepearlman/)
 * (@shanepearlman)
 * [12 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-after-update-missing-file/#post-3897174)
 * Looking into it, will get right back to you. =)
 *  Thread Starter [Puck](https://wordpress.org/support/users/puck/)
 * (@puck)
 * [12 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-after-update-missing-file/#post-3897175)
 * Update RESOLVED: poked around and found that that file shouldn’t even be called
   which reminded me I should clear my caches after the upgrade. Cleared my OPCode
   and nginx caches and was able to successfully re-activate the plugin.
 * I’ll leave this here for anyone else having the same problem.
 *  [Shane Pearlman](https://wordpress.org/support/users/shanepearlman/)
 * (@shanepearlman)
 * [12 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-after-update-missing-file/#post-3897178)
 * Phew. =)
 *  [Rob La Gatta](https://wordpress.org/support/users/roblagatta/)
 * (@roblagatta)
 * [12 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-after-update-missing-file/#post-3897179)
 * Thanks for confirming this for us, Puck – was indeed a momentary panic for the
   team when we saw this message 🙂
 * Let us know if you need anything else here. And congratulations on posting the
   first 3.0-centric topic on this forum ever!
 *  Thread Starter [Puck](https://wordpress.org/support/users/puck/)
 * (@puck)
 * [12 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-after-update-missing-file/#post-3897183)
 * I imagine you were freaking out as much as I was. After a switch from LAMP to
   nginx/php-fpm/FastCGI and using OPCode PHP caching I’ve had a few batches of 
   weirdness because of all the caching going on (but a wickedly faster/leaner server).
 * It didn’t spring to mind immediately because I was, as mentioned, freaking out.
   Glad it was an easy fix that I got to quickly. I think “clear your PHP cache”
   is probably going to become my “did you try turning it off and then on again?”
   whenever I have similar problems in the future.
 * If you’re in Vancouver, BC in a few weeks, come on out to our live podcast! [https://www.causticgear.com/event/caustic-soda-space-disasters-in-3d/](https://www.causticgear.com/event/caustic-soda-space-disasters-in-3d/)

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘500 Error after update – missing file’ is closed to new replies.

 * ![](https://ps.w.org/the-events-calendar/assets/icon-256x256.gif?rev=2516440)
 * [The Events Calendar](https://wordpress.org/plugins/the-events-calendar/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/the-events-calendar/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/the-events-calendar/)
 * [Active Topics](https://wordpress.org/support/plugin/the-events-calendar/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/the-events-calendar/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/the-events-calendar/reviews/)

## Tags

 * [Crash](https://wordpress.org/support/topic-tag/crash/)

 * 5 replies
 * 3 participants
 * Last reply from: [Puck](https://wordpress.org/support/users/puck/)
 * Last activity: [12 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-after-update-missing-file/#post-3897183)
 * Status: resolved