I broke my blog and need to reload it - how?

I entered a wrong code to my functions PHP folder. Now my blog is gone.
I’m not sure how to fix it but assume I can upload my blog again to wordpress via FTP?

I’m new and don’t really understand all the stuff behind this. How do I do this?

Someone please help me! I’m so upset.

What code did you enter and where did you enter it?

and what is your blog displaying instead?

The code I entered:

My blog currently displays:

Parse error: syntax error, unexpected ‘<’ in /home/debmcc4/mccormickmadness.com/wp-content/themes/thesis_181/custom/custom_functions.php on line 118[hr]

Lakerat - thanks for responding. I was able to fix it so all is well.