Hi,
Recently i copied my live server to a local vagrant and took the whole database from live too. After trying to login in processwire i got the message above.
I made a truncate on the tables caches, session_login_throttle and sessions and the login was successfully. But now, when i am trying to save some changes in the processwire backend i got the message above again. I've tried multiple suggestions and found out that processwire can´t write on the database. I also logged in via mysql-console with the same user configured in the pw-config and an update works fine. I checked file permission and they are ok.
The site and the admin works without any problems, i only can´t save anything. But the tables caches, session_login_throttle and sessions are filled by pw.
Any suggestions about how to fix this are welcome. Thank you!