OK, I tried deactivating the plugins through phpMyAdmin with no luck. It still gives the same error on the login page, and the same errors after trying to log in.
I can’t get into the admin page at all. When I click login, it just gives all the errors. I did try a method that I found on another forum entry. I renamed the plugins folder to pluginsholding and made a new folder called plugins to see if that was the problem. It didn’t help my problem or change the errors at all. Thanks for your help, though.