[mysql-async] [ERROR] ER_ACCESS_DENIED_ERROR: Access denied for user 'zap839288-1'@'xxxxxxxx' (using password: YES)

When we try to log into our server we get this error when we start it up.
[mysql-async] [ERROR] ER_ACCESS_DENIED_ERROR: Access denied for user ‘zap839288-1’@‘xxxxxxx’ (using password: YES)

Does anyone know how to fix it?

Verify that the password is correct. It seems to be, according to the message that is the problem.

Your password is wrong or you are trying to connect to an database which you dont have access to etc.