Problem with phpbb forum

Can someone help me with this one.
http://www.sxoc.nl/forum

I think there is something wrong in the database.
But i'm not sure.

Thanx

wow those be many errors

Warning: Cannot modify header information <-- these errors disapear if you fix the mysql error..

Looks like a query goes wrong, did you changed anything to tables? or is the table you requesting changed in anyway? Or does it excist?

have u tried www.phpbb.com ?

nice forum going on there