Unable to edit/create user in Magento 1.8 admin panel

[krishnaprasadpb]

1. I have checked Apache and Exception logs. In apache I could not find any log related to the iussue. exception logs at URL http://ekabyte.com/reply.txt
2. We have installed many extensions and recently no extensions were added. Recently I have applied latest patch only. Installed extention u can see at http://ekabyte.com/reply.txt
3. I have pasted exception logs many times in post however its not displayed it looks. Above is the exception log.

[iweb_smartie]

Ok well unfortunately we are going to be unable to re-produce this error and without anything from your error logs to aid us i would suggest setting up the site locally and then one by one remove each of the extensions you have installed making sure cache is disabled.

You can also quickly disable all local modules by editing app/etc/local.xml changing the disable_local_modules node to true.

Good luck!

[krishnaprasadpb]

thank you. i will try out in my local machine