The clue is within the song itself. See the * (asterisk) beside the kit name? That’s the kit the song was made with.
Try searching for it on the forum to see if you can come up with it. Once you download it, use the BeatBuddy Manager (BBM) to Import > Drum Set then click on the Drum Sets tab, scroll to the bottom of the list and check the box. Save your project. Try playing the song. If the bass still does not sound, quit the BBM and then reopen and try to play again.
HINT: this is what the advanced search results turn up: https://forum.singularsound.com/search?expanded=true&q=rock%20with%20bass%20%40Guitar_Stu%20%23user-generated-content%3Adrum-kits and the kit is within the 3d post.