This isn't meant to sound rude, but some little piece of advice from me:
a) don't install modules withouth knowing what they do. after reading the name of it AND the text you would have known what module has caused this.
b) there is an extensive FAQ where this is covered
c) there is a Search function that would have given you the answer right away as there are *many* threads where new admins posted this question
i.e.
http://dragonprime.net/index.php?topic=3989.0 (mark my last words)
PS: you are in the absolutely wrong forum too...