Welcome aboard t3redundee!
New members are always welcome, we need all the help we can get.
Looks like the barnacles need to be scraped off the hull. We'll let you take care of that. Just be sure to hold on tight.
About your question. The best I can say is you may have a corrupted file. It's common with the games installs. Try removing and installing again. Make sure you install in it's own directory. The mods won't work if the game is in the "Program Files (x86)" directory.