Mysidia Adoptables v1.3.0[Security Release]

[PokePets]

Ok, I installed the Mys script, anything works.
Then I installed the forum script and edited the config_forum fille.
Now I get this on the index of my Mys site;

Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[42000] [1044] Access denied for user 'u693722181_niels'@'10.1.2.2' to database 'u693722181_beta'' in /home/u693722181/public_html/Beta/functions/functions.php:11 Stack trace: #0 /home/u693722181/public_html/Beta/functions/functions.php(11): PDO->__construct('mysql:host=mysq...', 'u693722181_niel...', 'MyPASSWORD') #1 /home/u693722181/public_html/Beta/index.php(3): include('/home/u69372218...') #2 {main} thrown in /home/u693722181/public_html/Beta/functions/functions.php on line 11

I didn't change my username or so and the forum is in another database.
Help?

EDIT; OMG OMG OMG Q___Q
ALL MY DATABASE'S GOT COMPLETLY DELETED?!