Map crashing server

Hello. Im a newb map maker. But when I compile my map in hammer it runs perfectly in singleplayer.
I download the file onto my server and I try to switch to it and BOOM! it crashes my server. This happened to alot of maps and I want to fix it.
Any help?

We can’t help you without any information, could we see the map? What’s the maps file name? What OS is the server?

Welp. I believe the server’s OS is windows. The maps file name is mu_in_mason_town.bsp
The ingame name is Murder In Mason Town

And the download:
https://www.dropbox.com/s/h1t9g6gcc73pycz/mu_in_mason_town.bsp?dl=1