Trouble with languagesystem

Hi! I don’t understand why this is happening. Started after the last update. An error pops up. Help me fix it please

The error is quite clear. It needs an language tag, like ‘ENG’. But the code is automatic so can you click the update button? If that doesn’t help, you most likely have some unfinished code in one of your features. Can you send me the file that I can fix it?