Help! Website broken – edited CSS

Hello,

I was having a problem with the “Comment” function not showing up in the blog post, and was trying to troubleshoot on my own, via advice in the forum.

I edited something in the function.php and now my site is not working, bringing me to a page with: Parse error: syntax error, unexpected ‘add_filter’ (T_STRING) in /home2/marissam/public_html/wp-content/themes/runway/functions.php on line 57

I saved the piece of code that I deleted and replaced, but I cannot get back to the Editor, to replace it. I cannot get back to my WordPress Dashboard at all – each page takes me to the above error. Can someone help?

Thank you!!