Page not displayed on phpwebiste

I really need help, I just finished working on my website using phpwebsite. I wanted to hide the "login box" instead I did something else, I deactivated one of the modules (from module maker), I can't remeber which one but I think states "user manager". Now I can't view my site at all, I tried to go to www.myhost.com/admin/ but nothing comes on and no error message generated. Please help needed. Thanks.