That's happening coz there is a bug in portal..Change ur password and keep it in range of 8 to 15 letters..It will work

Same major problem me too. I have register too but while filling form its continuously after 2 minutes its suddenly showing pop up like session expired and we can not even save our data what we filled at that time. We have to login it again and same thing happening. We can not even fill the single. The web site is become too slow. What to do?