Can't Build Any Ships In Conquest

Installed the expansion, in the same folder as the base game, can’t build ANY ships and also can’t use any ships at all in normal NON conquest mode. It’s as if the program can’t link to the ship data! Sorry if this is a duplicate subject posting but tried to look through all the posts and couldn’t find anything resembling this topic. Thanks in advance, love GSB core game and really want to play GSB conquest. HELP!!!