Resetting monetdb administrative password

Hello, Can somebody tell me how to reset monetdb administrative password? I’ve tried to stop mserver5, start it manually, oldp:=clients.getPasswordHash(“monetdb"); newp:=clients.backendsum("newpassword"); clients.changePassword(oldp, newp); Stoping it again and start in normal mode But it didn’t help: mclient --database=mydb --user=monetdb password:<usingnewpass> InvalidCredentialsException:checkCredentials:invalid credentials for user 'monetdb'