DELGADO VELASQUEZ JAVIER ALEXANDER created an issue 2021-05-29:

Good morning, this mod in its versions for 1.12.2 contains an incompatibility with the mod "Astral Sorcery" version 1.12.2 -1.10.20, the problem is that it simply prevents the ability to fire both firearms and cannons, it does not show crash, but it makes what you want to achieve with the mod useless.

I would appreciate your help. And sorry for my English, it is not my mother tongue.

Note: this is my list of mods and only by removing Astral Soercery can I use your mod. 10 attempts to remove and put to confirm. I also attach the confictive mod and its dependency "the dependency alone doesn't seem to affect", I don't know if it's really the right thing to do but I'm not very expert in putting this type of post.

[1.12.2]DamageIndicatorsMod-3.5.1.jar"
AbyssalCraft-1.12.2-1.9.12.jar"
AmbientSounds_v3.0.10_mc1.12.2.jar"
Animalium-0.3.8.jar"
Astralsorcery-1.12.2-1.10.20.jar"
backpack-3.0.2-1.12.2.jar"
Baubles-1.12-1.5.2.jar"
BiblioCraft[v2.4.5][MC1.12.2].jar"
BloodMagic-1.12.2-2.4.2-104.jar"
candyworld-1.1.5.jar"
ChestTransporter-1.12.2-2.8.8.jar"
Clans-1.12.2-2.1.3.jar"
Comes-Alive-espanol.jar
CreativeCore_v1.10.3_mc1.12.2.jar
CustomNPCs_1.12.2-(01Oct19).jar
ElectroblobsWizardry-4.2.10-MC1.12.2 (1).jar
Explorercraft-2.2.9.jar"
Forgelin-1.8.4.jar"
future-mc-1.12.2-0.2.4.1.jar"
GottschCore-mc1.12.2-f14.23.5.2854-v1.14.0.jar"
GrimoireOfGaia3-1.12.2-1.7.2.jar
Guide-API-1.12-2.1.8-63.jar"
iceandfire-1.9.1-1.12.2.jar"
InfernalMobs-1.12.2.jar"
jei_1.12.2-4.15.0.291.jar"
journeymap-1.12.2-5.5.5.jar"
llibrary-1.7.19-1.12.2.jar"
magicalcrops-1.0.2-MC-1.12.jar"
Metallurgy-4-Reforged-0.2.3.jar"
mowziesmobs-1.5.4.jar"
oldguns-1.12.2-2.0.4.jar"
OptiFine_1.12.2_HD_U_G5.jar"
Overlord-1.12.2-2.4.14.jar"
Overlord-1.12.2-2.4.14-sources.jar"
Pam's+HarvestCraft+1.12.2zg.jar
RecurrentComplex-1.4.8.2.jar
RoguelikeDungeons-1.12.2-1.8.0.jar
rustic-1.1.1.jar
SanLib-1.12.2-1.5.1.jar
SpartanShields-1.12.2-1.5.4.jar
SpartanWeaponry-1.12.2-beta-1.3.8.jar
SRParasites-1.12.2v1.8.2.jar
Thaumcraft-1.12.2-6.1.BETA26.jar
tombstone-3.5.9-1.12.2.jar
"Treasure2-mc1.12.2-f14.23.5.2854-v1.16.1.jar
VariedCommodities_1.12.2(15may18.jar
"Corldedit-forge-mc1.12-6.1.8-dist.jar

On my server, the console when firing a cannon throws this message.

[02:01:56] [Server thread/ERROR] [FML]: Exception caught during firing event net.minecraftforge.event.entity.EntityJoinWorldEvent@4a35a64c:
Cliente> java.lang.NullPointerException: null
Cliente> at net.minecraft.network.datasync.EntityDataManager.func_187225_a(EntityDataManager.java:150) ~[nb.class:?]
Cliente> at net.minecraft.entity.projectile.EntityArrow.func_70241_g(EntityArrow.java:636) ~[aeh.class:?]
Cliente> at hellfirepvp.astralsorcery.common.constellation.perk.attribute.type.AttributeCritMultiplier.onArrowCt(AttributeCritMultiplier.java:42) ~[AttributeCritMultiplier.class:?]
Cliente> at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_47_AttributeCritMultiplier_onArrowCt_EntityJoinWorldEvent.invoke(.dynamic) ~[?:?]
Cliente> at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90) ~[ASMEventHandler.class:?]
Cliente> at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:182) ~[EventBus.class:?]
Cliente> at net.minecraft.world.World.func_72838_d(World.java:1209) ~[amu.class:?]
Cliente> at net.minecraft.world.WorldServer.func_72838_d(WorldServer.java:1058) ~[oo.class:?]
Cliente> at zach2039.oldguns.common.tile.TileEntityStationaryArtillery.lambda$processPlayerInteraction$0(TileEntityStationaryArtillery.java:512) ~[TileEntityStationaryArtillery.class:?]
Cliente> at java.util.ArrayList.forEach(Unknown Source) [?:1.8.0_291]
Cliente> at zach2039.oldguns.common.tile.TileEntityStationaryArtillery.processPlayerInteraction(TileEntityStationaryArtillery.java:502) [TileEntityStationaryArtillery.class:?]
Cliente> at zach2039.oldguns.common.block.BlockStationaryCannon.func_180639_a(BlockStationaryCannon.java:164) [BlockStationaryCannon.class:?]
Cliente> at net.minecraft.server.management.PlayerInteractionManager.func_187251_a(PlayerInteractionManager.java:449) [or.class:?]
Cliente> at net.minecraft.network.NetHandlerPlayServer.func_184337_a(NetHandlerPlayServer.java:741) [pa.class:?]
Cliente> at net.minecraft.network.play.client.CPacketPlayerTryUseItemOnBlock.func_148833_a(SourceFile:55) [ma.class:?]
Cliente> at net.minecraft.network.play.client.CPacketPlayerTryUseItemOnBlock.func_148833_a(SourceFile:11) [ma.class:?]
Cliente> at net.minecraft.network.PacketThreadUtil$1.run(SourceFile:13) [hv$1.class:?]
Cliente> at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_291]
Cliente> at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_291]
Cliente> at net.minecraft.util.Util.func_181617_a(SourceFile:46) [h.class:?]
Cliente> at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:723) [MinecraftServer.class:?]
Cliente> at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668) [MinecraftServer.class:?]
Cliente> at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:185) [chd.class:?]
Cliente> at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526) [MinecraftServer.class:?]
Cliente> at java.lang.Thread.run(Unknown Source) [?:1.8.0_291]
Cliente> [02:01:56] [Server thread/ERROR] [FML]: Index: 10 Listeners:
Cliente> [02:01:56] [Server thread/ERROR] [FML]: 0: HIGHEST
Cliente> [02:01:56] [Server thread/ERROR] [FML]: 1: ASM: net.minecraftforge.common.ForgeInternalHandler@3949fcdc onEntityJoinWorld(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V
Cliente> [02:01:56] [Server thread/ERROR] [FML]: 2: ASM: hellfirepvp.astralsorcery.common.util.BlockDropCaptureAssist@27575e55 onDrop(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V
Cliente> [02:01:56] [Server thread/ERROR] [FML]: 3: HIGH
Cliente> [02:01:56] [Server thread/ERROR] [FML]: 4: ASM: hellfirepvp.astralsorcery.common.constellation.perk.attribute.type.AttributeCritChance@dc154bd7 onArrowCt(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V
Cliente> [02:01:56] [Server thread/ERROR] [FML]: 5: NORMAL
Cliente> [02:01:56] [Server thread/ERROR] [FML]: 6: ASM: baubles.common.event.EventHandlerEntity@357e6334 playerJoin(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V
Cliente> [02:01:56] [Server thread/ERROR] [FML]: 7: ASM: hellfirepvp.astralsorcery.common.constellation.perk.attribute.type.AttributeArrowSpeed@b96d0033 onArrowFire(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V
Cliente> [02:01:56] [Server thread/ERROR] [FML]: 8: ASM: hellfirepvp.astralsorcery.common.event.listener.EventHandlerEntity@2d8853ee onSpawnDropCloud(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V
Cliente> [02:01:56] [Server thread/ERROR] [FML]: 9: LOWEST
Cliente> [02:01:56] [Server thread/ERROR] [FML]: 10: ASM: hellfirepvp.astralsorcery.common.constellation.perk.attribute.type.AttributeCritMultiplier@8bcd7c54 onArrowCt(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V
Cliente> [02:01:56] [Server thread/FATAL] [minecraft/MinecraftServer]: Error executing task
Cliente> java.util.concurrent.ExecutionException: java.lang.NullPointerException
Cliente> at java.util.concurrent.FutureTask.report(Unknown Source) ~[?:1.8.0_291]
Cliente> at java.util.concurrent.FutureTask.get(Unknown Source) ~[?:1.8.0_291]
Cliente> at net.minecraft.util.Util.func_181617_a(SourceFile:47) [h.class:?]
Cliente> at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:723) [MinecraftServer.class:?]
Cliente> at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668) [MinecraftServer.class:?]
Cliente> at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:185) [chd.class:?]
Cliente> at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526) [MinecraftServer.class:?]
Cliente> at java.lang.Thread.run(Unknown Source) [?:1.8.0_291]
Cliente> Caused by: java.lang.NullPointerException
Cliente> at net.minecraft.network.datasync.EntityDataManager.func_187225_a(EntityDataManager.java:150) ~[nb.class:?]
Cliente> at net.minecraft.entity.projectile.EntityArrow.func_70241_g(EntityArrow.java:636) ~[aeh.class:?]
Cliente> at hellfirepvp.astralsorcery.common.constellation.perk.attribute.type.AttributeCritMultiplier.onArrowCt(AttributeCritMultiplier.java:42) ~[AttributeCritMultiplier.class:?]
Cliente> at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_47_AttributeCritMultiplier_onArrowCt_EntityJoinWorldEvent.invoke(.dynamic) ~[?:?]
Cliente> at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90) ~[ASMEventHandler.class:?]
Cliente> at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:182) ~[EventBus.class:?]
Cliente> at net.minecraft.world.World.func_72838_d(World.java:1209) ~[amu.class:?]
Cliente> at net.minecraft.world.WorldServer.func_72838_d(WorldServer.java:1058) ~[oo.class:?]
Cliente> at zach2039.oldguns.common.tile.TileEntityStationaryArtillery.lambda$processPlayerInteraction$0(TileEntityStationaryArtillery.java:512) ~[TileEntityStationaryArtillery.class:?]
Cliente> at java.util.ArrayList.forEach(Unknown Source) ~[?:1.8.0_291]
Cliente> at zach2039.oldguns.common.tile.TileEntityStationaryArtillery.processPlayerInteraction(TileEntityStationaryArtillery.java:502) ~[TileEntityStationaryArtillery.class:?]
Cliente> at zach2039.oldguns.common.block.BlockStationaryCannon.func_180639_a(BlockStationaryCannon.java:164) ~[BlockStationaryCannon.class:?]
Cliente> at net.minecraft.server.management.PlayerInteractionManager.func_187251_a(PlayerInteractionManager.java:449) ~[or.class:?]
Cliente> at net.minecraft.network.NetHandlerPlayServer.func_184337_a(NetHandlerPlayServer.java:741) ~[pa.class:?]
Cliente> at net.minecraft.network.play.client.CPacketPlayerTryUseItemOnBlock.func_148833_a(SourceFile:55) ~[ma.class:?]
Cliente> at net.minecraft.network.play.client.CPacketPlayerTryUseItemOnBlock.func_148833_a(SourceFile:11) ~[ma.class:?]
Cliente> at net.minecraft.network.PacketThreadUtil$1.run(SourceFile:13) ~[hv$1.class:?]
Cliente> at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) ~[?:1.8.0_291]
Cliente> at java.util.concurrent.FutureTask.run(Unknown Source) ~[?:1.8.0_291]
Cliente> at net.minecraft.util.Util.func_181617_a(SourceFile:46) ~[h.class:?]
Cliente> ... 5 more

Not fixed. Mod list of recent issue. Suspect is Astral Sorcerery:

Minecraft Comes Alive [5.3.1]
Antique Atlas
Astral Sorcery
Astrological Sorcery
Baubles
BetterFPS
Born in a Bar
Clumps
DaVinci's Vessels
DimensionalDoors
Earthworks
Epic Knights: Shields, Armor and Weapons
Fish's Undead Rising
Future MC
Improved Backpacks
JJ Skill
Just Enough Items (JEI)
Leo's Craftable Chainmail
MCA Old Life
Millenaire
MovingWorld
Nether Update Backport
Old Guns Mod
OPTIFINE
RadixCore
Realistic Terrain Generation
Shadowfacts' Forgelin
Steve's Bizarre Adventure
Stygian End: Biome Expansion
TrashSlot
Traverse Reforged
Vampires Need Umbrellas
Vampirism - Become a Vampire
Village Names
Wall-Jump! [FORGE]
Waystones

Should be fixed with 9f0a86d now that bullet entities are no longer arrows.