DB:insert throws false since 3.9.6

I just updated my Kirby CMS up to 3.9.6.
My Kirby is connected to a database to create virtual pages based on the database content.

Since the update, my Db:insert function in my writeContent() just returns false and no insert happens.

$result = Db::insert(‘objekte’, $data);

Could you please provide more detailed information? Date you send to the database, table definitions etc. I assume there is some conflict with what you send vs what data is allowed in the database.