This is the lower part of my latest.log while stuck at 0%; I haven't changed anything since the last time I made a world so it's weird that this is happening now 

 at com.google.gson.internal.bind.TreeTypeAdapter.read(TreeTypeAdapter.java:69) ~[gson-2.8.0.jar:?]
    at com.google.gson.Gson.fromJson(Gson.java:887) ~[gson-2.8.0.jar:?]
    at com.google.gson.Gson.fromJson(Gson.java:952) ~[gson-2.8.0.jar:?]
    at com.google.gson.Gson.fromJson(Gson.java:925) ~[gson-2.8.0.jar:?]
    at net.minecraftforge.common.ForgeHooks.loadLootTable(ForgeHooks.java:824) ~[?:?]
    at net.minecraft.world.storage.loot.LootTableManager.lambda$apply$0(LootTableManager.java:46) [?:?]
    at net.minecraft.world.storage.loot.LootTableManager$$Lambda$14355/904248195.accept(Unknown Source) [?:?]
    at java.util.HashMap.forEach(HashMap.java:1280) [?:1.8.0_51]
    at net.minecraft.world.storage.loot.LootTableManager.func_212853_a_(LootTableManager.java:44) [?:?]
    at net.minecraft.world.storage.loot.LootTableManager.func_212853_a_(LootTableManager.java:22) [?:?]
    at net.minecraft.client.resources.ReloadListener.func_215269_a(SourceFile:13) [?:?]
    at net.minecraft.client.resources.ReloadListener$$Lambda$10311/1865356086.accept(Unknown Source) [?:?]
    at java.util.concurrent.CompletableFuture.uniAccept(CompletableFuture.java:656) [?:1.8.0_51]
    at java.util.concurrent.CompletableFuture$UniAccept.tryFire(CompletableFuture.java:632) [?:1.8.0_51]
    at java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:442) [?:1.8.0_51]
    at net.minecraft.resources.AsyncReloader.func_219557_a(SourceFile:71) [?:?]
    at net.minecraft.resources.AsyncReloader$$Lambda$12259/821225403.run(Unknown Source) [?:?]
    at net.minecraft.util.concurrent.TickDelayedTask.run(SourceFile:18) [?:?]
    at net.minecraft.util.concurrent.ThreadTaskExecutor.func_213166_h(SourceFile:144) [?:?]
    at net.minecraft.util.concurrent.RecursiveEventLoop.func_213166_h(SourceFile:23) [?:?]
    at net.minecraft.server.MinecraftServer.func_213166_h(MinecraftServer.java:731) [?:?]
    at net.minecraft.server.MinecraftServer.func_213166_h(MinecraftServer.java:141) [?:?]
    at net.minecraft.util.concurrent.ThreadTaskExecutor.func_213168_p(SourceFile:118) [?:?]
    at net.minecraft.server.MinecraftServer.func_213205_aW(MinecraftServer.java:714) [?:?]
    at net.minecraft.server.MinecraftServer.func_213168_p(MinecraftServer.java:708) [?:?]
    at net.minecraft.util.concurrent.ThreadTaskExecutor.func_213161_c(SourceFile:127) [?:?]
    at net.minecraft.server.MinecraftServer.func_195568_a(MinecraftServer.java:1464) [?:?]
    at net.minecraft.server.MinecraftServer.func_195560_a(MinecraftServer.java:450) [?:?]
    at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:77) [?:?]
    at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:96) [?:?]
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:613) [?:?]
    at java.lang.Thread.run(Thread.java:745) [?:1.8.0_51]
[00:51:41] [Server thread/INFO]: Add gems to loot table minecraft:chests/jungle_temple (2 rolls)
[00:51:41] [Server thread/INFO]: Add 'rare' items to loot table minecraft:chests/village/village_temple
[00:51:42] [Server thread/INFO]: Add 'rare' items to loot table minecraft:chests/pillager_outpost
[00:51:42] [Server thread/INFO]: Add 'rare' items to loot table minecraft:chests/nether_bridge
[00:51:42] [Server thread/INFO]: Add gems to loot table minecraft:chests/stronghold_crossing (4 rolls)
[00:51:42] [Server thread/INFO]: Add 'rare' items to loot table minecraft:chests/stronghold_crossing
[00:51:42] [Server thread/INFO]: Add gems to loot table minecraft:chests/desert_pyramid (3 rolls)
[00:51:42] [Server thread/INFO]: Registered 4 additional loot tables.
[00:51:43] [Server thread/INFO]: Loaded 7849 advancements
[00:51:43] [Server thread/INFO]: Resource Manager Reloading
[00:51:44] [Server thread/INFO]: Reloading chaos buff files
[00:51:44] [Server thread/INFO]: Finished! Registered 15 chaos buffs
[00:51:45] [Server thread/INFO]: Reloading trait files
[00:51:45] [Server thread/INFO]: Registered 48 traits
[00:51:46] [Server thread/INFO]: Reloading part files
[00:51:46] [Server thread/INFO]: Registered serializer 'silentgear:highlight'
[00:51:46] [Server thread/INFO]: Registered serializer 'silentgear:grip'
[00:51:46] [Server thread/INFO]: Registered serializer 'silentgear:binding'
[00:51:46] [Server thread/INFO]: Registered serializer 'silentgear:tip'
[00:51:46] [Server thread/INFO]: Registered serializer 'silentgems:gear_soul'
[00:51:46] [Server thread/INFO]: Registered serializer 'silentgear:main'
[00:51:46] [Server thread/INFO]: Registered serializer 'silentgear:bowstring'
[00:51:46] [Server thread/INFO]: Registered serializer 'silentgear:misc_upgrade'
[00:51:46] [Server thread/INFO]: Registered serializer 'silentgear:rod'
[00:51:46] [Server thread/INFO]: Skipping loading gear part silentgems:main/amazonite as it's conditions were not met
[00:51:46] [Server thread/WARN]: Unknown item tag 'forge:nuggets/compressed_iron' on part 'silents_mechanisms:main/compressed_iron'. Part will not be usable for crafting.
[00:51:46] [Server thread/WARN]: Unknown item tag 'forge:nuggets/refined_iron' on part 'silents_mechanisms:main/refined_iron'. Part will not be usable for crafting.
[00:51:46] [Server thread/INFO]: Registered 116 parts
[00:51:46] [Server thread/INFO]: CraftTweaker reload starting!
[00:51:46] [Server thread/INFO]: [org.openzen.zenscript.javashared.JavaClass:fromInternalName:45]: char
[00:51:46] [Server thread/INFO]: [org.openzen.zencode.java.JavaNativeModule:convertExpansion:472]: Could not get class for type IData[string] attempting to do stuff anyways
[00:51:46] [Server thread/INFO]: [org.openzen.zencode.java.JavaNativeModule:convertExpansion:472]: Could not get class for type string[string] attempting to do stuff anyways
[00:51:46] [Server thread/INFO]: [org.openzen.zencode.java.JavaNativeModule:convertExpansion:472]: Could not get class for type string[string] attempting to do stuff anyways
[00:51:46] [Server thread/INFO]: [org.openzen.zencode.java.JavaNativeModule:convertExpansion:472]: Could not get class for type IData[] attempting to do stuff anyways
 

Please post the debug.log in full (github gist is helpful for this)

3 hours ago, Ugdhar said:

Please post the debug.log in full (github gist is helpful for this)

So this issue is kinda fixed but now I get a initzation error and the game doesn't boot up anymore

3 hours ago, Ugdhar said:

Please post the debug.log in full (github gist is helpful for this)