"It's the PHP settings and MySQL settings" This is what they say.
I opened a ticket telling this at my host.
There are a lot of dos's at the host I am...


They told me this: "it seems your site was using more mysql socks than most and it was causing the mysql server to reject ur requests ive change the max sock connections there should not be anymore mysql errors"...

And I just got in 5 minutes maximum at about 20 MySql Database Errors...
And always the same error:
mysql_connect(): Too many connections
/****/****/p****/forums/includes/class_core.php on line 311


Thank you lokiloki for your replies!!