Tried removing likes from blog detail header, site doesn't load anymore

Hey there,

I followed the instructions to remove the ‘likes’ from a blog post from this thread:

Removing Likes from Blog Detail header

And I pasted the above code in Editor > Kopy Child: Theme Functions > functions.php without the two lines of code for the likes and now my site doesn’t load at all. I can’t get back into my WordPress admin panel or anything. Help – what do I do now?

My site is otherworld.ly for reference for what I mean by it doesn’t load/shows a blank screen!

Any help would be appreciated,
Thank you!