Ur not gonna like the answer.
It's 1 of two things, try #2 first.

#1. You may have to uninstall the mod then the game, then reenstall the game then mod, then validate the files

or

#2, your game could be like mine and you just have to do it twice for whatever reason. Like seriosuly every single time. Just enter with forces of corruption, click mods, click the mod. let it crash, then repeat the process. Sometimes it takes 3 times for me.
Dont touch anything after youve already clicked the mod thing tho, or it wont work.

Instead of starting the game with "StarWarsG.exe" start it with "swfoc.exe" which is in the "corruption" folder. The go to mods, select the mod and enjoy!