If anyone else finds themselves in this situation, bluehost makes it so you don’t need an FTP server. log into your bluehost account and go to your hosting tab and go to cpanel. from there, scroll to your file manager and open it up. that’s where all of the files are for your site. go to the public_html folder (or use the search) and find /public_html/wp-content/themes/“YOUR THEME”/functions.php and download that file. Open the file with notepad and you can edit it, which in my case I had to delete the line of code that i tried to add which crashed my site. Then you can reupload and overwrite the old file back into your public_html folder, and viola! everything should be back to normal!!!!