Ive tried many times to get it to open but it just wont. I have disabled all my anti virus software but all it will do is just run in the background
Hello and welcome to the community. 
Please follow the full instructions here: I can’t Install WeMod / "There was a error installing the application" - #2 by Ravenfyre.
Simply disabling your antivirus will not undelete any important files that it already deleted.