Unable to log in

I have a newish installation of Drupal. For the most part, I have just been installing modules. I left the site alone for a few days and when I went back the login button was gone. I have been updating everything from the front end and don’t have SSH access (I do have FTP). I’d like to log in and fix the problem but I have no clue how. I did a web search and saw lots of things about going to one page or another but none of them did me any good. 

Drupal version: 


Source: https://www.drupal.org/taxonomy/term/22/feed