login and db problem

[TRANCEBUDHA]

Every time I want to login i get this problem, my db user n' pass are ok, also i move the hole forum to the cgi-bin and its the same thing. i get the login page (login.php) but at the time i hit enter i get the db problem, im watching my db and it seems to be ok. i have since last friday this way i talked to my host and they havent move a thing, thast what they say.

There seems to have been a slight problem with the First FTA Mexican Community database.
Please try again by pressing the refresh button in your browser.

An E-Mail has been dispatched to our Technical Staff, who you can also contact if the problem persists.

We apologise for any inconvenience.

please help me i feel very desparate. this is my forum address:

http://www.ftamasters.com/VB/INDEX.PHP

thanks in advance