I have tried 10 times to fix the server but I keep getting an error message when I try to join that says "connection lost, fatally missing registry", my friends are able to join just fine and there's no crash error in Aternos.
I am using a forge 1.12.2 server with the following mods in my server:
animania-1.12.2-1.6.2.jar
Baubles-1.12-1.5.2.jar
betteranimalsplus-1.12.2-9.0.1.jar
BiomesOPlenty-1.12.2-7.0.1.2402-universal.jar
Botania r1.10-363.jar
CookingForBlockheads_1.12.2-6.5.0.jar
CraftStudioAPI-universal-1.0.1.95-mc1.12-alpha.jar
Decocraft-2.6.3_1.12.2.jar
device-mod-0.4.1-1.12.2.jar
FarmingForBlockheads_1.12.2-3.1.28.jar
furniture-6.3.1-1.12.2.jar
guns-0.15.3-1.12.2.jar
MCA-1.12.2-6.1.0-universal.jar
MoBends_1.12.2-1.0.0-beta-20.06.20.jar
MorePlayerModels_1.12.2-(05Dec19).jar
obfuscate-0.4.2-1.12.2.jar
Pam's BrewCraft 1.12.2-1.0.2.jar
Patchouli-1.0-23.6.jar
PTRLib-1.0.4.jar
SereneSeasons-1.12.2-1.2.10-universal.jar
Tails-1.12-1.10.0.jar
vehicle-mod-0.44.1-1.12.2.jar
wildnature-1.2.jar
XL-Food-Mod-1.12.2-1.9.2.jar