Cannot log into Facebook

Hello,

Please can someone help out there,

I wanted to delete 'liked' page on my timeline, when I selected delete I was surprised to get a line with an arrow to move my cursor along, and percentages to deletion. As soon as I did that my page went blank, I couldn't log out.

Now I cannot log-in, when I try to the page is blank. However, I tried to log in a different way and the page is distorted-stories, pics are huge - totally different FB format.

Don't know what I've done wrong, if anyone can help I would be very grateful..

Thanks.