I'm having an issue with 503 error. When I'm trying to log into admin panel, i'm getting:
503 Service Unavailable
The server is temporarily busy, try again later!
I'm using LiteSpeed Web Server.
All front pages such as product pages, checkout etc. works fine. Admin panel worked fine yesterday and today morning but now it stopped. I haven't changed any files.
If anyone had this problem before and fixed it, or knows could I diagnose it. I would appreciate your help.
It seems that my hosting provider updated PHP to 7.0.7 form 7.0.3 today, and have not informed me about that. That is probably the reason it doesn't work.