1 observation found. Every finding below comes from what was actually in the pasted files. Treat the fixes as suggestions: they cover the common causes, and this case may need more digging.
Fabric
This looks like a client log, not a server log. The findings below apply to the player's machine.
This log contains 3 lines logged at ERROR level. Roastd checked them against its failure signatures and none matched, so they are classified as benign. A plain count of ERROR lines will always be higher than the number of findings here.
info
Refmap warnings are cluttering the log
A "reference map could not be read" warning on its own is usually harmless build noise from a mod, not the cause of a crash. Ignore these lines unless a real mixin failure appears further down. They only matter when paired with an injection error.
[22:30:44] [main/INFO]: Compatibility level set to JAVA_17
[22:30:44] [main/WARN]: Reference map '[common]ctov-common-refmap.json' for ctov-common.mixins.json could not be read. If this is a development environment you can ignore this message
[22:30:44] [main/INFO]: Loaded configuration file for Embeddium: 346 options available, 3 override(s) found
[22:30:44] [main/WARN]: Reference map 'JustEnoughResources-Fabric-1.20.1-refmap.json' for jeresources.mixins.json could not be read. If this is a development environment you can ignore this message
[22:30:44] [main/INFO]: Loaded configuration file for Lithium: 131 options available, 1 override(s) found
[22:30:45] [main/INFO]: Loaded configuration file for ModernFix 5.19.7+mc1.20.1: 61 options available, 0 override(s) found
[22:30:45] [main/WARN]: @Mixin target io.vram.frex.base.renderer.context.render.EntityBlockRenderContext was not found porting_lib_base.mixins.json:client.frex.EntityBlockRenderContextMixin from mod porting_lib_base
[22:30:45] [main/WARN]: Force-disabling mixin 'alloc.blockstate.StateMixin' as rule 'mixin.alloc.blockstate' (added by mods [ferritecore]) disables it and children
[22:30:46] [main/WARN]: Force-disabling mixin 'features.render.world.sky.WorldRendererMixin' as rule 'mixin.features.render.world.sky' (added by mods [iris]) disables it and children
[22:30:46] [main/WARN]: Force-disabling mixin 'features.render.world.sky.ClientWorldMixin' as rule 'mixin.features.render.world.sky' (added by mods [iris]) disables it and children
[22:30:46] [main/WARN]: Force-disabling mixin 'features.render.world.sky.BackgroundRendererMixin' as rule 'mixin.features.render.world.sky' (added by mods [iris]) disables it and children
[22:30:46] [main/WARN]: Force-disabling mixin 'features.render.gui.font.GlyphRendererMixin' as rule 'mixin.features.render.gui.font' (added by mods [iris]) disables it and children
[22:30:46] [main/WARN]: Force-disabling mixin 'features.render.gui.font.FontSetMixin' as rule 'mixin.features.render.gui.font' (added by mods [iris]) disables it and children
[22:30:46] [main/WARN]: Force-disabling mixin 'features.render.entity.shadows.EntityRenderDispatcherMixin' as rule 'mixin.features.render.entity' (added by mods [iris]) disables it and children
[22:30:46] [main/WARN]: Force-disabling mixin 'features.render.entity.remove_streams.ModelPartMixin' as rule 'mixin.features.render.entity' (added by mods [iris]) disables it and children
[22:30:46] [main/WARN]: Force-disabling mixin 'features.render.entity.remove_streams.HierarchicalModelMixin' as rule 'mixin.features.render.entity' (added by mods [iris]) disables it and children
[22:30:46] [main/WARN]: Force-disabling mixin 'features.render.entity.fast_render.ModelPartMixin' as rule 'mixin.features.render.entity' (added by mods [iris]) disables it and children
[22:30:46] [main/WARN]: Force-disabling mixin 'features.render.entity.fast_render.CuboidMixin' as rule 'mixin.features.render.entity' (added by mods [iris]) disables it and children
[22:30:46] [main/WARN]: Force-disabling mixin 'features.render.entity.cull.EntityRendererMixin' as rule 'mixin.features.render.entity' (added by mods [iris]) disables it and children
[22:30:46] [main/INFO]: Searching for graphics cards...
[22:30:48] [main/INFO]: Found graphics card: GraphicsAdapterInfo[vendor=INTEL, name=Intel(R) UHD Graphics, version=DriverVersion=32.0.101.6790]
[22:30:48] [main/WARN]: Embeddium has applied one or more workarounds to prevent crashes or other issues on your system: [NVIDIA_THREADED_OPTIMIZATIONS]
[22:30:48] [main/WARN]: This is not necessarily an issue, but it may result in certain features or optimizations being disabled. You can sometimes fix these issues by upgrading your graphics driver.
[22:30:48] [main/INFO]: Initializing MixinExtras via com.llamalad7.mixinextras.service.MixinExtrasServiceImpl(version=0.5.4).
[22:30:52] [main/INFO]: Injecting BlockStateBase cache population hook into getNeighborPathNodeType from me.jellysquid.mods.lithium.mixin.ai.pathing.AbstractBlockStateMixin
[22:30:52] [main/INFO]: Injecting BlockStateBase cache population hook into getPathNodeType from me.jellysquid.mods.lithium.mixin.ai.pathing.AbstractBlockStateMixin
[22:30:52] [main/INFO]: Injecting BlockStateBase cache population hook into getOpacityIfCached from ca.spottedleaf.starlight.mixin.common.blockstate.BlockStateBaseMixin
[22:30:52] [main/INFO]: Injecting BlockStateBase cache population hook into isConditionallyFullOpaque from ca.spottedleaf.starlight.mixin.common.blockstate.BlockStateBaseMixin
[22:30:52] [main/INFO]: Injecting BlockStateBase cache population hook into getAllFlags from me.jellysquid.mods.lithium.mixin.util.block_tracking.AbstractBlockStateMixin
[22:30:55] [main/WARN]: Method overwrite conflict for method_21740 in modernfix-common.mixins.json:perf.remove_biome_temperature_cache.BiomeMixin from mod modernfix, previously written by me.jellysquid.mods.lithium.mixin.world.temperature_cache.BiomeMixin. Skipping method.
[22:30:56] [main/INFO]: Vanilla bootstrap took 4751 milliseconds
[22:30:58] [Render thread/WARN]: Injection warning: LVT in net/minecraft/class_332::method_51435(Lnet/minecraft/class_327;Ljava/util/List;IILnet/minecraft/class_8000;)V has incompatible changes at opcode 178 in callback iceberg.mixins.json:GuiGraphicsMixin from mod iceberg->@Inject::storeLocalsOptifine(Lnet/minecraft/class_327;Ljava/util/List;IILnet/minecraft/class_8000;Lorg/spongepowered/asm/mixin/injection/callback/CallbackInfo;Ljava/lang/Object;IIIILorg/joml/Vector2ic;)V.
Expected: [Ljava/lang/Object;, I, I, I, I, Lorg/joml/Vector2ic;]
Found: [I, I, I, I, Lorg/joml/Vector2ic;]
Available: [I, I, I, I, Lorg/joml/Vector2ic;]
[22:30:58] [Render thread/INFO]: Registering C2S receiver with id artifacts:networking_channel/42a7ad70b1cc371599a0eff744096b8a
[22:30:58] [Render thread/INFO]: Registering S2C receiver with id artifacts:networking_channel/42a7ad70b1cc371599a0eff744096b8a
[22:30:58] [Render thread/INFO]: Registering C2S receiver with id artifacts:networking_channel/74a5e841822a3a87854ae896a33430d6
[22:30:58] [Render thread/INFO]: Registering S2C receiver with id artifacts:networking_channel/74a5e841822a3a87854ae896a33430d6
[22:30:58] [Render thread/INFO]: Registering C2S receiver with id artifacts:networking_channel/eb3d1e2748533430848cadf0f37c7e9c
[22:30:58] [Render thread/INFO]: Registering S2C receiver with id artifacts:networking_channel/eb3d1e2748533430848cadf0f37c7e9c
[22:30:58] [Render thread/INFO]: Registering C2S receiver with id artifacts:networking_channel/91c8520f19f93b3e8b6a727568e194ab
[22:30:58] [Render thread/INFO]: Registering S2C receiver with id artifacts:networking_channel/91c8520f19f93b3e8b6a727568e194ab
[22:30:58] [Render thread/INFO]: Registering C2S receiver with id artifacts:networking_channel/8c2784d778293fd482ed84b8aa5fedb9
[22:30:58] [Render thread/INFO]: Registering S2C receiver with id artifacts:networking_channel/8c2784d778293fd482ed84b8aa5fedb9
[22:30:58] [Render thread/INFO]: Registering C2S receiver with id artifacts:networking_channel/ea038224ea783d40b2863f52239e2604
[22:30:58] [Render thread/INFO]: Registering S2C receiver with id artifacts:networking_channel/ea038224ea783d40b2863f52239e2604
[22:30:58] [Render thread/INFO]: Registering C2S receiver with id artifacts:networking_channel/97ad64b7ecaf33209991c4f031501a58
[22:30:58] [Render thread/INFO]: Registering S2C receiver with id artifacts:networking_channel/97ad64b7ecaf33209991c4f031501a58
[22:30:58] [Render thread/INFO]: Reflections took 35 ms to scan 1 urls, producing 0 keys and 0 values
[22:30:58] [Render thread/INFO]: Reflections took 1 ms to scan 1 urls, producing 0 keys and 0 values
[22:30:58] [Render thread/INFO]: Reflections took 6 ms to scan 1 urls, producing 1 keys and 2 values
[22:30:58] [Render thread/INFO]: Reflections took 1 ms to scan 1 urls, producing 1 keys and 2 values
[22:30:58] [Render thread/INFO]: Reflections took 1 ms to scan 1 urls, producing 1 keys and 3 values
[22:30:58] [Render thread/INFO]: Reflections took 2 ms to scan 1 urls, producing 1 keys and 3 values
[22:30:58] [Render thread/INFO]: Reflections took 1 ms to scan 1 urls, producing 1 keys and 2 values
[22:30:58] [Render thread/INFO]: Reflections took 1 ms to scan 1 urls, producing 1 keys and 2 values
[22:30:58] [Render thread/INFO]: Reflections took 1 ms to scan 1 urls, producing 1 keys and 3 values
[22:30:58] [Render thread/INFO]: Reflections took 1 ms to scan 1 urls, producing 1 keys and 3 values
[22:30:58] [Render thread/INFO]: Reflections took 1 ms to scan 1 urls, producing 1 keys and 2 values
[22:30:58] [Render thread/INFO]: Reflections took 1 ms to scan 1 urls, producing 1 keys and 2 values
[22:30:58] [Render thread/INFO]: Reflections took 1 ms to scan 1 urls, producing 1 keys and 1 values
[22:30:58] [Render thread/INFO]: Reflections took 1 ms to scan 1 urls, producing 1 keys and 1 values
[22:30:58] [Render thread/INFO]: Fixing MC-151457. Crafting remainder for minecraft:pufferfish_bucket is now minecraft:bucket.
[22:30:58] [Render thread/INFO]: Fixing MC-151457. Crafting remainder for minecraft:salmon_bucket is now minecraft:bucket.
[22:30:58] [Render thread/INFO]: Fixing MC-151457. Crafting remainder for minecraft:cod_bucket is now minecraft:bucket.
[22:30:58] [Render thread/INFO]: Fixing MC-151457. Crafting remainder for minecraft:tropical_fish_bucket is now minecraft:bucket.
[22:30:58] [Render thread/INFO]: Fixing MC-151457. Crafting remainder for minecraft:axolotl_bucket is now minecraft:bucket.
[22:30:58] [Render thread/INFO]: Fixing MC-151457. Crafting remainder for minecraft:powder_snow_bucket is now minecraft:bucket.
[22:30:58] [Render thread/INFO]: Fixing MC-151457. Crafting remainder for minecraft:tadpole_bucket is now minecraft:bucket.
[22:30:58] [Render thread/INFO]: [STDOUT]: All 10 have been set properly
[22:30:59] [Render thread/INFO]: Loading Collective version 8.13.
[22:31:00] [Render thread/WARN]: Discarding @Unique public method getOffset in porting_lib_extensions.mixins.json:client.VertexFormatMixin from mod porting_lib_extensions because it already exists in net.minecraft.class_293
[22:31:01] [Render thread/INFO]: Constructing common components for cutthrough:main
[22:31:01] [Render thread/INFO]: Loading client config for cutthrough
[22:31:02] [Render thread/INFO]: Ksyxis: Ready. As always, this mod will speed up your world loading and might or might not break it. (mixinVersion: 0.8.7, time: 0 ms)
[22:31:02] [Render thread/INFO]: Initialize mod Library Ferret
[22:31:02] [Render thread/INFO]: Initialized mod Library Ferret
[22:31:02] [Render thread/INFO]: Registering Ribbit data serializers...
[22:31:02] [Render thread/INFO]: Updated config file at C:\Users\[redacted-user]\curseforge\minecraft\Instances\NEW FOREVER we keep\config\rightclickharvest.json5
[22:31:02] [Render thread/INFO]: Initializing Right Click Harvest on FABRIC
[22:31:03] [Render thread/INFO]: Loaded 293 hat entries from simplehats.json
[22:31:03] [Render thread/INFO]: Generated 293 hat items from hat entries.
[22:31:03] [Render thread/INFO]: [STDOUT]: Hello from Epic Knights Addon init!
[22:31:03] [Render thread/INFO]: Deserializing SnowUnderTreesConfig from 'C:\Users\[redacted-user]\curseforge\minecraft\Instances\NEW FOREVER we keep\config\snowundertrees.config.json'