I have only a log from eclipse
[m[33m[16:43:11] [Server thread/WARN] [minecraft/EntityType]: Exception loading entity:
java.lang.NullPointerException: null
at com.jiminsdick.supernova.entities.AngelEntity.registerAttributes(AngelEntity.java:64) ~[main/:?] {re:classloading}
at net.minecraft.entity.LivingEntity.<init>(LivingEntity.java:201) ~[forge-1.15.2-31.2.5_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
at net.minecraft.entity.MobEntity.<init>(MobEntity.java:99) ~[forge-1.15.2-31.2.5_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B}
at net.minecraft.entity.CreatureEntity.<init>(CreatureEntity.java:13) ~[forge-1.15.2-31.2.5_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
at net.minecraft.entity.AgeableEntity.<init>(AgeableEntity.java:25) ~[forge-1.15.2-31.2.5_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
at net.minecraft.entity.passive.AnimalEntity.<init>(AnimalEntity.java:30) ~[forge-1.15.2-31.2.5_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
at com.jiminsdick.supernova.entities.AngelEntity.<init>(AngelEntity.java:29) ~[main/:?] {re:classloading}
at net.minecraft.entity.EntityType.create(EntityType.java:421) ~[forge-1.15.2-31.2.5_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
at net.minecraft.entity.EntityType.lambda$loadEntityUnchecked$0(EntityType.java:432) ~[forge-1.15.2-31.2.5_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
at java.util.Optional.map(Unknown Source) ~[?:1.8.0_251] {}
at net.minecraft.entity.EntityType.loadEntityUnchecked(EntityType.java:431) ~[forge-1.15.2-31.2.5_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
at net.minecraft.entity.EntityType.loadEntity(EntityType.java:479) ~[forge-1.15.2-31.2.5_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
at net.minecraft.entity.EntityType.func_220335_a(EntityType.java:461) ~[forge-1.15.2-31.2.5_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
at net.minecraft.command.impl.SummonCommand.summonEntity(SummonCommand.java:50) ~[forge-1.15.2-31.2.5_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
at net.minecraft.command.impl.SummonCommand.lambda$register$1(SummonCommand.java:32) ~[forge-1.15.2-31.2.5_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
at com.mojang.brigadier.CommandDispatcher.execute(CommandDispatcher.java:262) ~[brigadier-1.0.17.jar:?] {}
at net.minecraft.command.Commands.handleCommand(Commands.java:210) ~[?:?] {re:classloading}
at net.minecraft.network.play.ServerPlayNetHandler.handleSlashCommand(ServerPlayNetHandler.java:1033) ~[?:?] {re:classloading}
at net.minecraft.network.play.ServerPlayNetHandler.processChatMessage(ServerPlayNetHandler.java:1013) ~[?:?] {re:classloading}
at net.minecraft.network.play.client.CChatMessagePacket.processPacket(CChatMessagePacket.java:40) ~[?:?] {re:classloading}
at net.minecraft.network.play.client.CChatMessagePacket.processPacket(CChatMessagePacket.java:8) ~[?:?] {re:classloading}
at net.minecraft.network.PacketThreadUtil.lambda$checkThreadAndEnqueue$0(PacketThreadUtil.java:19) ~[?:?] {re:classloading}
at net.minecraft.util.concurrent.TickDelayedTask.run(TickDelayedTask.java:20) [?:?] {re:classloading}
at net.minecraft.util.concurrent.ThreadTaskExecutor.run(ThreadTaskExecutor.java:140) [?:?] {re:classloading,pl:accesstransformer:B}
at net.minecraft.util.concurrent.RecursiveEventLoop.run(RecursiveEventLoop.java:22) [?:?] {re:classloading}
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:759) [?:?] {re:classloading,pl:accesstransformer:B}
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:141) [?:?] {re:classloading,pl:accesstransformer:B}
at net.minecraft.util.concurrent.ThreadTaskExecutor.driveOne(ThreadTaskExecutor.java:110) [?:?] {re:classloading,pl:accesstransformer:B}
at net.minecraft.server.MinecraftServer.driveOneInternal(MinecraftServer.java:742) [?:?] {re:classloading,pl:accesstransformer:B}
at net.minecraft.server.MinecraftServer.driveOne(MinecraftServer.java:736) [?:?] {re:classloading,pl:accesstransformer:B}
at net.minecraft.util.concurrent.ThreadTaskExecutor.driveUntil(ThreadTaskExecutor.java:123) [?:?] {re:classloading,pl:accesstransformer:B}
at net.minecraft.server.MinecraftServer.runScheduledTasks(MinecraftServer.java:722) [?:?] {re:classloading,pl:accesstransformer:B}
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:666) [?:?] {re:classloading,pl:accesstransformer:B}
at java.lang.Thread.run(Unknown Source) [?:1.8.0_251] {}
[m[32m[16:43:11] [Render thread/INFO] [minecraft/NewChatGui]: [CHAT] Unable to summon entity