cant log in Profile error.

wen someone trys to log on to my site using the link at the top right corner the log in faded menu comes up howeer if u place your information in the fields  thr folowing error pops up:  Profile error. Please, try again. if you log in from the home page midway down it works fine. i have also noticed that the forum just keeps loading at profile view. i have been changing color in the general css file. and still working on it does anyone have suggestions? the site is  www,maddpoets.com   thanks