Thread: How to installed PHP Based Appliction?

I have CentOS 5.3 installed on one of my servers, which is running a PHP-based application. I do not have much experience with Linux and neither am I facing any problem with the server that CentOS is installed on. Yet, while trying to access the 'User Manager' by clicking 'User and Groups' in System-->Administrations, I get an error. I do not know how to resolve this. I think I would need to make some changes with a few users. Please help me.

Thanks,Since the message very clearly says that the error has been caused due to a mismatch between the /etc/passwd and /etc/shadow files, please check both files for any out-of-sync entry.