Plugin Error

#1093620
  • [29-Aug-2025 08:17:00 UTC] PHP Fatal error: Uncaught Error: Class “ActionScheduler_Lock” not found in /srv/htdocs/wp-content/plugins/seo-by-rank-math/vendor/woocommerce/action-scheduler/classes/abstracts/ActionScheduler.php:55

    I am having this error on my plugin. Also whenever I activate the plugin it is buggin Avada Live Builder and I cant enter it. Can you fix the issue? I think I have done some wrong options.

    Because I have changed all the page SEO Titles and descriptions one by one.

Viewing 3 replies - 1 through 3 (of 3 total)
  • Hello,

    We apologize for the issue you are facing with the Rank Math plugin. The error you are encountering, Class "ActionScheduler_Lock" not found, typically indicates a problem with the Action Scheduler library that Rank Math relies on. This can happen if there are conflicts with other plugins or if the Action Scheduler tables are not set up correctly.

    To resolve this issue, we recommend following these steps:

    1. Backup Your Database: Before making any changes, ensure you have a backup of your database. You can find guidance on how to do this here.

    2. Repair Action Scheduler: You can use our Repair Action Scheduler plugin to fix this issue automatically. Here’s how:

      • Download the Repair Action Scheduler plugin from GitHub.
      • Upload the ZIP file to your site via Plugins → Add New → Upload Plugin.
      • Activate the plugin, and it should automatically fix the missing tables and deactivate itself afterward.

      Repair Action Scheduler Error Plugin

    3. Clear Cache: After performing these steps, make sure to clear all caches, including server-side caches, to ensure that changes take effect.

    If you continue to experience issues with Avada Live Builder or if you would like us to check your settings more thoroughly, we recommend considering our professional setup service. This service is designed for users who want to ensure their plugin setup is fully correct and adheres to the latest SEO standards. You can find more information about this service here.

    If you have any further questions or need additional assistance, please reply to this ticket, and a human agent from our support team will assist you further. Thank you for raising this concern!

    Sources:
    Fatal Error Happening on Some Installations After 1.0.49 Update » Rank Math

    This is an automated reply from Rank Math Support Bot. Your ticket has been assigned to a human agent and we will get back to you shortly.

    Waiting.

    Hello,

    We might need to take a closer look at the settings. Please edit the first post on this ticket and include your WordPress & FTP logins in the designated Sensitive Data section.

    Please do take a complete backup of your website before sharing the information with us.

    Sensitive Data Section

    It is completely secure and only our support staff has access to that section. If you want, you can use the below plugin to generate a temporary login URL to your website and share that with us instead:

    https://wordpress.org/plugins/temporary-login-without-password/

    You can use the above plugin in conjunction with the WP Security Audit Log to monitor what changes our staff might make on your website (if any):

    https://wordpress.org/plugins/wp-security-audit-log/

    Looking forward to helping you.

    Thank you.

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