Created How can I contact an admin

I recently reached Level 6 on my account- that I made through Facebook. I decided, "Why not show my sister this game" and so I did. Today, the laptop she usually played on wasn't working, so I let her play on mine. She, too, was signed up through facebook. Now, whenever I try to login through Facebook, it just leads me to her account. I've tried logging me and her out on both laptops, and logging in on this laptop, but still leads to her account. I haven't contacted an admin or administrator yet, but I think I should. Any thoughts? PS, The Facebook account was called Edwin Usprich. It's not banned or locked, because you can still search for it and find it. (The account i'm on currently was made in 2014, and I never used it since then)
Recently I was locked out of my account due to a bug with facebook, I need an admin, or anybody to help me get my account back