Cannot login to admin after updating front page

[kartune]

The website is: monstersinmotion.com

After updating some images on the front page, now I cannot login to the admin. There is no error, it just loops back to the login again. I saw a post on here with the same exact issue. Their solution was to restart the computer- Did that-- didn't work.
Please help.

I did not install anything new, nor update recently.

[kobra]

How/what did you update your frontpage??
Exactly what did you do and how & where did you do it?

[lhungil]

After updating some images on the front page, now I cannot login to the admin.
I did not install anything new, nor update recently.

You did not install anything new and did not update anything recently... But you just told us you updated some images... Hmmm... A little more information on exactly what has changed since the last time you verified everything was working on your store would be useful...

Have you gone in via STFP / FTPS and looked to see if any "debug" logs exist? If so what is found in the debug logs?

Have you read & tried "I cant login to the admin"? Have you tried resetting the admin password?

If you have tried the above or any other steps... It would help others reading this thread if you could list what you have tried (and the result).

I've also noted from a quick glance at your website you have a custom URL mod (not stock SSU, USU, or CEON)... Have you tried disabling your modified URL mod? Have you double checked your .htaccess to make sure you have not accidentally added some incorrect lines (most stock URL mods will not rewrite the admin folder / files)?