Help with server and script

So I’m wanting to run a zombie server where obviously its open world and such but whenever I put the files into my fivereborn directory for my trainer and for the zombie mod it doesn’t work could someone help me out and tell me how to get my own menus to work in this thank you!

wich mods and wich trainer? where did you place them?

im just downloading a old mod menu I have from back in the day and I just put it into the fivereborn directory no where special and the zombie mod is the simple zombies mod

and where did you install them?