I think I see your problem. It appears you downloaded a very old version, with a name that's very similar to the current one. The pack you wanted would be [ScrewThisNoise] HoneySelect 2 DX BetterRepack R3. Note the "DX" in there - it means the DX expansion is included, and pack numbering started over at 1 for the DX packs. The DX 3.1 version just came out a few days ago, that's the one to get, you can find it here:
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Select "HoneySelect 2 DX" in the left column as the page defaults to Koikatsu. Grab the torrent version if you can, as it uses single files rather than split archives. The base game is about 30GB, you don't need the whole 70GB+ unless you want all the optional stuff for use in studio (not used in the main game itself).