Re-install it again, there's a video that you can follow. And try not to rush on installing this mod since most people who rush on installing it failed. Try following the video step by step.

Thanks it works

Hey, you can watch my version of how to install 8 survivors sorucemod if you forgot to know how to do it. The video is 2022 edition, easier way to do it and for people who wants to rush in, lmao.
Video link: https://www.youtube.com/watch?v=dG76V6_u3As