edited functions.php, broken site, please help.

Can you please help? I had attempted to add a line of code to my functions.php and it completely broke my site. I even undid the line of code in there that I had added and it remained broken and then forcing me to remove lines of existing code due to consistent parsing and fatal errors:(]

I’m now finally able to get into the wp-admin page, but my site is now broken. fluidcopydotcom.

Thank you.

My site has been down now almost 48 hours. Anything I can do to expedite? Is it simple enough to just swap in the original functions.php file from the original shapely theme zip?