Admin page not displaying
 

I've launched a site and all was well however when I came to log into the admin section today it shows a "page not found" error.

I can view the admin log in screen, its once ive typed in my username and password that I get the 404 error.

Please can you help me diagnose the issue.

Thanks

Please deactivate all plugins first to see if any of those are interfering.

Also check your error logs.