Replies: 1
Recently upgraded another plugin and encountered a fatal error that ActionScheduler cannot be redeclared:
An error of type E_ERROR was caused in line 10 of the file /xxx/xxx/public_html/wp-content/plugins/action-scheduler/classes/abstracts/ActionScheduler.php. Error message: Cannot declare class ActionScheduler, because the name is already in use
The fix is to update WP Mail SMTP’s version of ActionScheduler to v3.2.0. I found the fix for this on ActionScheduler support page: https://wordpress.org/support/topic/critical-error-after-plugin-update-4/#post-14564620. That user was having the same problem with WP Mail SMTP.