I had to go to windows 11. To do this, I bought a new computer. I transferred my programs over to the new machine. I downloaded Order of Battle WWII main program. My five subgames I purchased will not load, Why?

I have the Order of Battle WWII with the pacific add on. When I finished the battle of the Gilbert Island, the battle for Port Morsby does not load. The program hangs up.

Do you have any guidance?