Hi Tobias TM,
hava you read this post?
i-MSCP 1.1.5 released
Nuxin wrote here:
QuoteDisplay More
rrata
If you still have some troubles with Mysql
server connection (with SQL users created by your customers) try to
delete and recreate them. The wrong behavior has been fixed in the
version 1.1.5 but it's possible that the update path doesn't cover all cases.