I can't log in to my admin page after I replaced the includes and myadmin files that I saved using Backup ZC. I also replaced the database of the same date. I get a 404 page not found error from my website otherwise my website is working fine.

I tried disabling the cache and cookies but that didn't do anything. I checked the configuration files and they seem to be alright. Do I need to replace all the files from the original backup? I believe the two files I mentioned were the only ones altered. Any help is appreciated.