Tried you mod on my server modpack. It doesn't add the items nor the config. After copying the config from a SSP game the recipes became available but the items are uncraftable and do not apear in the creative overview (NEI can see them, thats how I know they should be available). We managed to cheat it in through NEI but it dissapears straight away.
Do you know perhaps what could cause this and how we should fix it?
The world is brand new, seems like the mod is just not accepted by the server for some reason
(no errors so I can't give you an error message; this is the mod list:

AbyssalCraft-1.11.2-1.9.4-pre-3.jar
Levels 2-1.11.2-r1.2.8.jar
advancedcombat-1.0.1-[1.11.2].jar
lightningcraft-2.8.4-[1.11.2].jar
Aroma1997Core-1.11.2-1.2.0.0.jar
malisiscore-1.11.2-5.1.1.jar
Aroma1997s-Dimensional-World-1.11.2-1.3.0.0.jar
malisisdoors-1.11.2-6.1.0.jar
astralsorcery-1.4.1.jar
Mantle-1.11.2-1.2.0.26.jar
Baubles-1.11-1.4.5.jar
minecolonies-universal-1.11.2-0.8.1784.jar
BiblioCraft[v2.3.1][MC1.11.2].jar
MmmMmmMmmMmm-1.11.2-1.13.jar
bigbattery-1.11.2-0.1.4.jar
MoreFurnaces-1.11.2-1.9.5.jar
BiomesOPlenty-1.11.2-6.1.0.2238-universal.jar
Morpheus-1.11.2-3.2.14.jar
BloodMagic-1.11-2.1.10-79.jar
NotEnoughItems-1.11.2-2.2.0.216-universal.jar
Bloodmoon-MC1.11-1.5.1.jar
NuclearCraft-2.2d--1.11.2.jar
Bookshelf-1.11.2-1.5.0.371.jar
QuickLeafDecay-MC1.11.2-1.2.3.jar
Botania r1.9-343.jar
reptilemod-1.11.2-3.6.2-67.jar
Chameleon-1.11.2-3.1.0.jar
roots-2-0.017.jar
Chisel-MC1.11.2-0.0.10.14.jar
RuneCraft 1.11.2 by XxRexRaptorxX (v.1.4.0).jar
CodeChickenLib-1.11.2-2.6.0.254-universal.jar
serversync-2.6.9.jar
CraftableElytra-1.1-1.11.2.jar
SimpleDimensions-MC1.11-1.3.jar
Currency-1.11.2-1.0.3.jar
SpartanShields-1.11.2-1.3a.jar
cxlibrary-1.11.2-1.4.0.jar
TConstruct-1.11.2-2.7.0.26.jar
CyclopsCore-1.11.2-0.10.3.jar
toolprogression-1.11.2-1.0.5.jar
embers-0.212.jar
torchmaster_1.11.2-1.3.4.39.jar
EpicSiegeMod-12.0.157.jar
toroquest-1.11.2-3.5.jar
EvilCraft-1.11.2-0.10.25.jar
Totemic-1.11.2-0.8.6.jar
extrautils2-1.11.2-1.4.1.jar
TreeChopper-1.11.2-1.1.2.jar
fairylights-2.1.0-1.11.2.jar
UniDict-1.11.2-1.0.jar
GraveStone Mod 1.7.2.jar
WanionLib-1.11.2-1.0.jar
Guide-API-1.11.2-2.1.1-52.jar
Wawla-1.11.2-2.4.0.231.jar
Hwyla-1.8.13-B26_1.11.jar
Waystones_1.11.2-3.0.16.jar
WearableBackpacks-1.11.2-2.3.2.jar
industrialcraft-2-2.7.33-ex111.jar
worldedit-forge-mc1.11-6.1.6-dist.jar
ironchest-1.11.2-7.0.19.803.jar
worldlimiter-1.11.2-1.1.0.jar

Torchmaster should work just fine on the server. The behavior you describe sound like the mod is not available on the server side. The server logfile might have more information. Could you upload the latest server logfile to https://pastebin.com or https://gist.github.com and link it here?

I've just setup a clean installation of forge 13.20.0.2304 (Server + Client) and installed the latest Torchmaster Release (1.3.4.39) and I was unable to replicate the issue. JEI shows the recipe just fine and crafting works as expected. I dont think this issue is on my end. Please make sure you've installed the correct version of Torchmaster for 1.11.2 on your server. If the issue still persist, try to replicate it with the least amount of mods possible.

I just ventured through the logs this is what I found
https://pastebin.com/0vTW1bze

I'll try later today with the newest forge install as I currently am not able to do so

Looks like the jar is corrupt. Re-download the mod for the server.

Here are the file hashes so you can make sure you got the right file. You can calculate the hashes for your torchmaster jar via https://md5file.com/calculator
torchmaster_1.11.2-1.3.4.39.jar - 83159 bytes

Any news on this? @chaoskie

my bad, I really need to learn to check GIT more regularly
but yes it works now, I traced it down to my firewall that decided a single part of the file had to be blocked, so a bunch of data never made it yet it had enough to not let it crash entirely.
Besides that, I'd like to get started with a few mod ideas too, can I contact you incase I have questions about a few things? (no worries I'm no full retard, but it's easier knowing you can ask someone who knows a bit more about modding when you get stuck somewhere.)

i suggest hopping onto discord, i hang around in the Minecraft Mod Development (MMD) Discord pretty much all the time. https://discordapp.com/invite/2QpDWmh (or see https://www.reddit.com/r/feedthebeast/ in the sidebar on the right is a list of Discord servers, including MMD)