https://imgur.com/a/hmV9hx6

I only have this mod enabled with this crash on factorio version 1.1.1

Confirmed:

2020/11/27 15:39:14 Factorio Server: 0.455 Error Util.cpp:83: Failed to load mod "AtomicArtillery": AtomicArtillery/prototypes/entity/projectiles.lua:1: module base.prototypes.entity.demo-sounds not found; no such file base/prototypes/entity/demo-sounds.lua
2020/11/27 15:39:14 [0.455 Error Util.cpp:83: Failed to load mod "AtomicArtillery": AtomicArtillery/prototypes/entity/projectiles.lua:1: module base.prototypes.entity.demo-sounds not found; no such file base/prototypes/entity/demo-sounds.lua]
2020/11/27 15:39:14 Factorio Server: stack traceback:
2020/11/27 15:39:14 Factorio Server: [C]: in function 'require'
2020/11/27 15:39:14 Factorio Server: AtomicArtillery/prototypes/entity/projectiles.lua:1: in main chunk
2020/11/27 15:39:14 Factorio Server: [C]: in function 'require'
2020/11/27 15:39:14 Factorio Server: AtomicArtillery/data.lua:4: in main chunk
2020/11/27 15:39:14 Factorio Server:
2020/11/27 15:39:14 Factorio Server: ------------- Error -------------
2020/11/27 15:39:14 [------------- Error -------------]
2020/11/27 15:39:14 Factorio Server: Failed to load mod "AtomicArtillery": AtomicArtillery/prototypes/entity/projectiles.lua:1: module base.prototypes.entity.demo-sounds not found; no such file base/prototypes/entity/demo-sounds.lua
2020/11/27 15:39:14 Factorio Server: stack traceback:
2020/11/27 15:39:14 Factorio Server: [C]: in function 'require'
2020/11/27 15:39:14 Factorio Server: AtomicArtillery/prototypes/entity/projectiles.lua:1: in main chunk
2020/11/27 15:39:14 Factorio Server: [C]: in function 'require'
2020/11/27 15:39:14 Factorio Server: AtomicArtillery/data.lua:4: in main chunk
2020/11/27 15:39:14 Factorio Server: ---------------------------------

Found it, sorry I don't really play Factorio anymore and hadn't realised that 1.1.X was still experimental.

They've (seemingly for no reason) renamed or merged "demo-sounds" to "sounds" now.

Will upload the fix now.

Perfekt! Works! 😄

Thanks a lot