I cant sign in? whats going on?????????

i have signed in with no problem in the past. i added a plugin and all of the sudden it wont let me sign n anymore? the pluggin was called ” ad rotator”…

anyway, my web site is https://bestcellulitetreatmentinfo.com

can someone click on my website link and see what it is i am talking about?
you will see when you click that on all of the funny code ontop of my webpage. how do i get rid of that??

Dave lee. email address is [email protected]