[關閉] Call to a member function get_language_codes() on bool

String translation causes fatal error, crashes site.
Only solution is disabling plugin by renaming plugin-folder, then re-enabling it.

I have created a staging site and will also share the error e-mail with you.

The problem occurs once a week on monday, german time, 0:44. Maybe some update is triggered? I don't know. Newest version is installed. My website is offline once a week for at least 8 hours, this is unacceptable.