Critical Error on latest version of WordPress

  • Resolved strike3

    (@strike3)


    2 months, 4 weeks ago

    Hi,
    We are getting a critical error after upgrading to WP 6.8 when we try to edit specific pages or go into Appearance->Menus. After some digging, it appears that disabling The Events Calendar plugin (free version 6.11.2) resolves the problem. We found this warning in our debug log:

    [21-Apr-2025 21:03:10 UTC] PHP Warning: Cannot modify header information – headers already sent by (output started at /home/customer/www/worldofworship.org/public_html/wp-includes/functions.php:6121) in /home/ourwebsitename/public_html/wp-content/plugins/the-events-calendar/src/Tribe/Views/V2/iCalendar/iCalendar_Handler.php on line 257

    We really like your plugin and want to keep using it on our site. We haven’t had any issues until this latest WP update. Any ideas on how we can get around the problem?

    Thanks for your help!
    Matt

Viewing 3 replies - 1 through 3 (of 3 total)
  • Plugin Support Darian

    (@d0153)

    2 months, 4 weeks ago

    Hi @strike3

    Thanks for reaching out. Let me help you with this one.

    I tested the issue on a fresh WordPress (v6.8) installation using the latest version of The Events Calendar plugin, but everything appears to be working as expected on my end.

    It’s possible that there’s a plugin or theme conflict on your end. To check, please try running a conflict test by activating only our plugins alongside a default WordPress theme, such as Twenty Twenty-One.

    If the issue is resolved, you can then reactivate your other plugins or theme one at a time to identify which one is causing the conflict.

    As always, we recommend performing these tests on a staging server to avoid affecting your live site.

    If that doesn’t help, could you provide the version of the following? This will help me understand how your system is set up.

    • PHP
    • Theme
    Thread Starter strike3

    (@strike3)

    2 months, 4 weeks ago

    Okay, thanks for the info on that. I did some more testing on a staging site, and it was a plugin called WooSidebars that was causing the warning over header information. Not sure why it was listing your plugin in the warning message, but disabling that other plugin fixed the issue. Somehow WooSidebars must have been interacting with the Events Calendar, and the combo was causing our memory to go over the maximum limit (256M), which was apparently the actual critical error.

    Anyway, we’re good to go now. Thanks again for your help!
    Matt

    Plugin Support Darian

    (@d0153)

    2 months, 3 weeks ago

    Hi @strike3

    Thanks for your confirmation and I’m glad that it is now working.

    If you have a minute, a great review from you would be amazing!

    https://wordpress.org/support/plugin/the-events-calendar/reviews/

Viewing 3 replies - 1 through 3 (of 3 total)
  • You must be logged in to reply to this topic.