Can't get custom mod to load to server

[cloud grail]

Trying and failing to test my mod on my own private server.

I have:
Downloaded dedicated server through steam
Launched startserver64.bat (havent opened dedi server through steam)

Set my .ini file with \modname and the workshop number correctly

I'm at a loss as to what to do. I can't get it to run my mod, even though its loaded in the steamapps folder

LOG  : Network      f:0, t:1772884683604, st:73,736,974> AdditionUDPPort has been mapped successfully
LOG  : Network      f:0, t:1772884683605, st:73,736,974> Initialising Server Systems...
LOG  : General      f:0, t:1772884683892, st:73,737,262> ERROR: mods isn't a valid workshop item ID
WARN : Mod          f:0, t:1772884683894, st:73,737,264> ZomboidFileSystem.loadModAndRequired> required mod "\testmod" not found
WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
WARNING: sun.misc.Unsafe::objectFieldOffset has been called by org.lwjgl.system.MemoryUtil (file:/C:/Program%20Files%20(x86)/Steam/steamapps/common/Project%20Zomboid%20Dedicated%20Server/java/projectzomboid.jar)
WARNING: Please consider reporting this to the maintainers of class org.lwjgl.system.MemoryUtil
WARNING: sun.misc.Unsafe::objectFieldOffset will be removed in a future release
LOG  : General      f:0, t:1772884686063, st:73,739,432> scriptChecksum: 892f8bdee6a0b567abdce0c64c1dc09b```

Its giving me mods isnt a valid id AND saying my mod isnt found idk what to do

@umbral vale I see you giving a lot of advice here, maybe you can help?

I actually tried initially using a windowsgsm plugin you're a contributer to, but have gone to the steam dedicated server as an attempt to fix it

[umbral vale]

I only help with the vanilla game, mod issues are best discussed in #mod_support

However, you might want to test first if other mods load, to check if its a server issue or an issue with your mod, just as a first troubleshooting step that will then set your direction

[cloud grail]

Nah I can't get any to load. the mod I'm attempting to load RN is purely a console print statement

[umbral vale]

I suggest you install the server through SteamCMD instead