login failure in Communication Express

i am not able to login in communication express. can anyone help me?

All the JES server are working fine. Even CE also working fine previously. But, when customization of CE, I have changed something in some file. after that i am not able to login.( i have replaced all original files whichever file i changed)

[323 byte] By [KhanNawaza] at [2007-11-26 20:11:11]