I located a solution in the forum (posted by karbor) and it fixed my problem. I performed the following actions and my site has been restored.
1. I logged into my HostGator cPanel and went to my website’s root folder (where all your website file stored.
2. I then located the folder inside it called WP-Content. Inside that folder is a folder called “Plugins”.
3. I located the “Sociable” plugin’s folder and simply deleted the entire “Sociable” folder. I am now able to log into my site.