Cab't Log In Help!!!

I totally messed up! I haven’t been on in a couple of months. I logged in today to make a couple of changes and update things. Anyways, one of the plug-in updates messed up my page. I decided to restore from my last back up and start over with the plug-in updates. I though my last update was most current, but now I think it might have been before I updated last time. (Hope that makes since). Anyways, I now do not know what version I restored to. The big problem is once I restored from backup it totally messed up my page and now I cant even log in to see what is going on. After I log in it just goes to a page full of Warnings.

Please help. I am obviously kind of novice and am really freaking out right now!

Thanks