Nevermind. I fixed it.
I placed the code on my child theme functions.php file rather stated on the guide on loop-single-forum.php.
Cheers! 🙂
Thanks Stephen @netweb for looking on to this.
I really wish I could say it fixed the issue apparently I’m still getting the same error. 🙁
( ! ) Fatal error: Cannot redeclare bbp_codex_remove_counts() (previously declared in C:\wamp\www\wp\wp-content\themes\twentytwelve-child\bbpress\loop-single-forum.php:9) in C:\wamp\www\wp\wp-content\themes\twentytwelve-child\bbpress\loop-single-forum.php on line 14