Hey, there is a guide linked in the description of this collection for adding these maps to a multiplayer server. If you're still having issues, reach out and I'll see what I can do to help

hey i need help may you reach me pls i added you on steam

The default.txt file [C:\Users\Username\Zomboid\mods\default.txt] you can sort your mod names and map folders for solo games. Alternatively, you can download mod order sorter for solo, mostly works.