Cant find login page!

Okay so I have had my site up and running for a while now, and I had installed a security plugin that supposedly renames some vulnerable files to prevent hackers. I installed this plugin weeks ago and all has been working seamlessly..

well today I went to log in and discovered that I was logged out (My cookies just kept me logged in automatically) my cache/cookies must have cleared out.. whatever. so I tried to go to my /wp-admin page.. and it says page not found.. Ive tried every combination of admin login page I could think of and I get the same… page not found..

I looked in my file manager and it still shows all my admin stuff there, untouched..

any help would be awesome.. I cant even log into my site!

URL is Longitude111.com