I am running into a related problem. My game is the Steam version, with SoD. I first installed DLCMerger, then the Divine Remix pack. So far, so good. Then I tried to install the BG1NPC mod, and it gave an error specifically saying that I needed to use ModMerge, first. From what I gather, Modmerge is outdated, and DMCMerger should offer updated functionality. Clearly, something is not working!