I have the same error, do you know what the solution is? my web page is down because of this error. https://movidirect.com.co/
I had to contact Bluehost and have them do a rollback to a lower version of wordpress & deactivate all the plugins. Then I updated the theme, updated the inactive plugins one by one, and finally upgraded to the newer version of wordpress. If all went well, I reactivated the plugins one by one.
Good luck.
I’ve had to rollback my environment for the same error. I’m still investigating but this morning I had every plugin off except for Colibri and still had the issue!
I’ve also been having Media upload issues.