For this specific case with yootheme 5, flart studio, and herzog..
I feel like we are going to see this on other sites so this is what i’d try if it comes up again:
- check php is 8.2
- update flart studio plugins
- if you see wp rocket stuff in the error log, it isn’t wp rocket thats the problem, so try deactivating the herzog plugin
- also make sure yootheme is up to date
I log into cpanel and rename the plugin folders by adding a number at the end, refresh the page, and see if it comes back to life. If it does, I rename the plugin folder back to what it was (it’ll still be deactivated) and then try to upload a fresh version overtop.