Local server vs. Dedicated server

Hi all!

I’ve already made a lot of things for DarkRP what worked on my own local server, but when I put it on a dedicated server it always fails somehow:(
I made a gamemode what worked successfully on my local server, but it also failed on dedicated server.

I want to ask is there any difference within the two server types?
If yes, what is it and how can I fix?

Sorry for my bad english.

You mean a listen server? a server you make in-game?