HTTP 500 Internal Server Error when deactivating the Event Calendar Pro plugin

[Kevin Litman]

If I deactivate “The Events Calendar” or “The Events Calendar PRO” plugins, my entire sites then gives a HTTP 500 Internal Server Error. The only way I’ve found to correct this issue is by restoring the active_plugins field in the wp_options table. I am running WordPress 4.1.1 on a Windows 2012 R2 server in IIS 8.5. I’m currently using the Avada Theme with a child theme configured. I did find that if I activate the non child Avada theme then I can deactivate the plugins with no issues.

[Matthew]

Howdy Kevin!

I’m sorry that you are experiencing an error 🙁 Let’s see if we can get to the bottom of it. Sometimes when an HTTP 500 Internal Server Error is thrown when deactivating the Events plugins, the culprit is a bit of code in the theme (or plugin) that uses The Events Calendar functions. We have a handy Knowledgebase post that should be of use – Testing for Conflicts. Walking through those steps should give us a better understanding on whether there is a bug within The Events Calendar/The Calendar Events Pro or if there is a bit of code somewhere else that needs to be fiddled with.

I look forward to hearing how the test goes!

[Kevin Litman]

I was able to find the issue. In my child functions.php file I had the following code which when removed, fixed the issue.

//The remove Related Events from The Events Calendar Pro
add_action( ‘init’, ‘remove_related_events’ );
function remove_related_events() {
$callback = array( TribeEventsPro::instance(), ‘register_related_events_view’ );
remove_action( ‘tribe_events_single_event_after_the_meta’, $callback );
}

[Matthew]

Nice! I’m glad you were able to track down the problematic code! I’ll go ahead and close out this ticket but if you run into any other issues, feel free to create a new forum post. 🙂

[Author]

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