Google sheets integration not working anymore

After having upgraded to core 2024.3.0 the google sheets integration stopped working. I can’t see where to start to get it fixed. On the integration i get this: "Config flow could not be loaded: {“message”:“Invalid handler specified”} "

Adding a new Google sheets integration gives me the same. Any suggestions?
A rollback doesn’t help either.

I would check the core integrations should there be an issue out on it already.
Issues · home-assistant/core · GitHub.
If not I would go thru the installation again.
Google Sheets - Home Assistant.
If that also does not work, I would gather all my data and screenshots and write up an issue.

Take a look into the Google Drive directly. I had a problem where the file existed in the Cloud but for some reason was not synching with the PC