Critical Problem admin login server error 500
I have been running my classifieds site for awhile now without problems.
This morning after processing an ad and deleting some users that are spammers I started having a problem.
When I TRY to LOGIN to wp
-admin , after entering my user ID and Password I get a Internal Server Error 500
I now have no access to the admin section of my site for some reason.
The site is running ok, still serving ads and working properly... but I can't log in as ADMIN at all.
Any suggestions would be appreciated and help me avoid getting an ulcer...
My site is very busy so I need to correct this ASAP.
Thank you to anyone who can help....!