[Koha] Error: Invalid username or password after upgrade to 18.05

[Eugen Bastron]

Dear colleagues,

after upgrade from 17 to 18.05 I get error if I try to connect to Koha with the admin user.

I have already tried to change the password in MySQL and then in koha-conf, but without result.

With my admin user I can connect to the database over terminal.

Maybe someone could help me resolve this error?

Best regards,
Eugen Bastron