So last night I was having separate problems with my wifi, and when it was finally connecting I tried to get on FH but suddenly the shortcut wasn't working, it was saying it had been changed or removed. I went to the main FH folder and found that the application file itself was gone for whatever reason. So, I copied the FH folder, moved it to Documents and renamed it(so I could keep all my modded files, maps, presets, and etc), then uninstalled the one in my Programs folder.
I keep trying to install a new FH but they all come with no application file? And at the beginning of the application process I get this error;