wall glitch while jumping using a character controller

I just started working with character controllers like a week ago and been having this problem I just cant seem to fix here is a gif of the problem : http://cdn.makeagif.com/media/6-02-2015/YvkiBW.gif

and here is my code : http://pastebin.com/s3vjLfP3

sorry for sending links and not just posting the code here, I do not know how to format it. and the gif was to big to put on