a little question

what is the forge version that aternos run if i choose forge 1.12.2 (i think it is the latest as i see from log)

and if it latest why when i run same mod on the server and my forge it crash on forge the mod is IChunUtil

can you please help me

this is the log of minecraft https://pastebin.com/1KfLi3t4

i request help in this because im not very experience at mods

and if it because forge version which version i choose?

i have the same mod on the server and my forge with the same forge version

and it crashes on my pc but on aternos no why?

maybe ok i forgot that mod thanks for the help