Admin login redirect to auther verification

Question

time out increased to 300 sec. by MultiPHP INI Editor (Editor Mode)
Now I am trying to admin login - https://pay2m.in/admin/login
It is redirect to every time to - https://pay2m.in/common/?authr=1

Then ask for Update or Verify | System Installation
* Required for a license update or security measures.

inserting purchase code and hiting continue button is not responding