I just tried to use my gibbon after a few weeks but whenever I enter my credentials, the login page reloads and redirects me to the login page again with no errors. Kindly help me out 
I just reinstalled it and it’s giving me the same problem.
Hi Ibrahim, it sounds like your sessions may not be working or saving properly, which is often related to a server configuration issue. Be sure to check that the user in your system that runs your web services (often www-data) has access to your session directory. Here’s a stackoverflow answer that may help: https://stackoverflow.com/a/8977032