CWP panel (GUI) not working [Broken]

I have been using cwp panel on my server for more then 2 years.

With few website and accounts on it. I havn't logged in the panel for a while...maybe 4months.

Today, i tried to login to admin & user panel...both of them or not loading. But the server and the services running fine... (All the websites are working fine)

Just the problem with the CWP GUI....how can i fix this?

Error: Login page infinity loading.... (it's just keeps on loading....Login page not appearing)

Note: This is not a fresh install, already running few websites on it without issues.

if you have pro service contact us via ticket and we'll check it.