Stainless steel 6.3-6.4 "Please select an Item from the list"

[RyRy!]

I have been searching for an hour and cannot find anything. I have searched Google and it led me to threads where i searched and could never find an answer.

It does not matter if I select early or late campaign in the set up it always shows late campaign and then I get the "Please select an Item from the list" message.

Not really sure what to do or where to begin. any and all advice will be 110% appreciated and I incredibly grateful.

[RyRy!]

This is a non-Steam version and everything appears to be installed correctly in C:\Program Files (x86)\SEGA\Medieval II Total War\mods\SS6.3

[Navajo Joe]

Find SS Set Up in MTW2 Mods folder, select, right click and Run as Admin