Serious Plesk Problem

[orkinoks]

Hi all,
I am new to plesk and getting an error which I couldnt solve even by contacting with ev1.I am not complaning ev1, it is not their problem at all. When I go into a domain on plesk I get this error.
------------------------
Unable to assign DomainControlForm object: Unable to addVars: domain_bu failed: Empty error message from utility.

--------------------------------------------------------------------------------
0: C:\Program Files\SWsoft\Plesk\admin\htdocs\domains\dom_ctrl.php3:173 psaerror(string "Unable to assign DomainControlForm object: Unable to addVars: domain_bu failed: Empty error message from utility.")
-----------------------------
Do you think it is a good idea to reconfigure plesk or reinstall it ?? Please help this newbie, I will give 2 mb free host