Error in Mambo-SMF bridge

Just installed Mambo 4.5.2 and SMF 1.0.5 with MamboSMF Forum componen 1.3.1.3 and SMFMamboMod1.3.1b.

Yes there is a Forum menu in my Mambo main page. But when i click, it refers to a page with this eeror message on the top of the page :

Code:

Warning: main(): open_basedir restriction in effect. File(/SSI.php) is not within the allowed path(s): (/home/stm:/usr/lib/php:/usr/local/lib/php:/tmp) in /home/stm/public_html/components/com_smf/smf.php on line 11

Warning: main(/SSI.php): failed to open stream: Operation not permitted in /home/stm/public_html/components/com_smf/smf.php on line 11

Warning: main(): Failed opening '/SSI.php' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/stm/public_html/components/com_smf/smf.php on line 11

I dont get this. Plz..