Where is the quest files so i can play this single player?
can someone pls help me

What do you mean by quest files? You can play this mod without problem in singleplayer. There is was GuideBook but you need to install the mod first.
@Raycoms when you ported c4eb328 through 951cc31 to the main thread, it seems that you forgot to port other changes made in this commit. I'm going to make a pull request for that if it will work

After #2456 will get approved and a new build will be available online, you should get a Guidebook immediately when joining your world
If it was the thing you wished to have, please close this issue

Since #2456 is merged, and there seems to be no follow up from the original creator, I will be closing this.