Describe the bug
save-all command caused crash

To Reproduce
run save-off command
run save-all command
server crashed

avior:

1. Do something
2. See error

Expected behavior

Screenshots

Runtime info (please complete the following information):

• OS: Open SUSE-Leap 15.6
• Minecraft version: 1.21.4
• Mod version: 0.3.2+alpha.0.35+1.21.4
• Mod branch: (fill this if you are not using the default ver branches)

Crash reports / logs
crash-2025-02-12_17.56.15-server.txt
crash-2025-02-16_20.29.18-server.txt
crash-2025-02-16_20.30.34-server.txt
crash-2025-02-10_21.43.45-server.txt

Other mods

[Server] [20:31:49] [main/INFO]: Loading 149 mods:
[Server] - antixray 1.4.9
[Server] |-- com_moandjiezana_toml_toml4j 0.7.2
[Server] -- fabric-permissions-api-v0 0.3.3
[Server] - appleskin 3.0.6+mc1.21.3
[Server] - architectury 15.0.1
[Server] - bluemap 5.5
[Server] -- com_flowpowered_flow-math 1.0.3
[Server] - c2me 0.3.2+alpha.0.35+1.21.4
[Server] |-- c2me-base 0.3.2+alpha.0.35+1.21.4
[Server] |-- c2me-client-uncapvd 0.3.2+alpha.0.35+1.21.4
[Server] |-- c2me-fixes-chunkio-threading-issues 0.3.2+alpha.0.35+1.21.4
[Server] |-- c2me-fixes-general-threading-issues 0.3.2+alpha.0.35+1.21.4
[Server] |-- c2me-fixes-worldgen-threading-issues 0.3.2+alpha.0.35+1.21.4
[Server] |-- c2me-fixes-worldgen-vanilla-bugs 0.3.2+alpha.0.35+1.21.4
[Server] |-- c2me-notickvd 0.3.2+alpha.0.35+1.21.4
[Server] |-- c2me-opts-allocs 0.3.2+alpha.0.35+1.21.4
[Server] |-- c2me-opts-chunkio 0.3.2+alpha.0.35+1.21.4
[Server] |-- c2me-opts-dfc 0.3.2+alpha.0.35+1.21.4
[Server] |-- c2me-opts-math 0.3.2+alpha.0.35+1.21.4
[Server] |-- c2me-opts-scheduling 0.3.2+alpha.0.35+1.21.4
[Server] |-- c2me-opts-worldgen-general 0.3.2+alpha.0.35+1.21.4
[Server] |-- c2me-opts-worldgen-vanilla 0.3.2+alpha.0.35+1.21.4
[Server] |-- c2me-rewrites-chunk-serializer 0.3.2+alpha.0.35+1.21.4
[Server] |-- c2me-rewrites-chunk-system 0.3.2+alpha.0.35+1.21.4
[Server] |-- c2me-rewrites-chunkio 0.3.2+alpha.0.35+1.21.4
[Server] |-- c2me-server-utils 0.3.2+alpha.0.35+1.21.4
[Server] |-- c2me-threading-lighting 0.3.2+alpha.0.35+1.21.4
[Server] |-- com_electronwill_night-config_core 3.6.5
[Server] |-- com_electronwill_night-config_toml 3.6.5
[Server] |-- com_ibm_async_asyncutil 0.1.0
[Server] |-- io_reactivex_rxjava3_rxjava 3.1.8
[Server] |-- mixinsquared 0.2.0-beta.6
[Server] |-- net_objecthunter_exp4j 0.4.8
[Server] |-- org_jctools_jctools-core 4.0.5
[Server] -- org_reactivestreams_reactive-streams 1.0.4
[Server] - carpet 1.4.161+v241203
[Server] - carpet-extra 1.4.161
[Server] - carpet-tis-addition 1.65.2
[Server] -- conditional-mixin 0.6.3
[Server] - cda 1.0-SNAPSHOT
[Server] - chunky 1.4.27
[Server] - cloth-config 17.0.144
[Server] -- cloth-basic-math 0.6.1
[Server] - cma 0.1.2
[Server] - creativecore 2.12.32
[Server] -- net_neoforged_bus 7.2.0
[Server] - debugify 1.21.4+1.1
[Server] - entityculling 1.7.2
[Server] - fabric-api 0.116.1+1.21.4
[Server] |-- fabric-api-base 0.4.54+b47eab6b04
[Server] |-- fabric-api-lookup-api-v1 1.6.86+b1caf1e904
[Server] |-- fabric-biome-api-v1 15.0.6+b1c29d8e04
[Server] |-- fabric-block-api-v1 1.0.31+7feeb73304
[Server] |-- fabric-block-view-api-v2 1.0.19+7feeb73304
[Server] |-- fabric-blockrenderlayer-v1 2.0.8+7feeb73304
[Server] |-- fabric-client-tags-api-v1 1.1.29+20ea1e2304
[Server] |-- fabric-command-api-v1 1.2.62+f71b366f04
[Server] |-- fabric-command-api-v2 2.2.41+e496eb1504
[Server] |-- fabric-commands-v0 0.2.79+df3654b304
[Server] |-- fabric-content-registries-v0 9.1.17+7feeb73304
[Server] |-- fabric-convention-tags-v1 2.1.15+7f945d5b04
[Server] |-- fabric-convention-tags-v2 2.12.1+e359e31604
[Server] |-- fabric-crash-report-info-v1 0.3.6+7feeb73304
[Server] |-- fabric-data-attachment-api-v1 1.5.2+2d7e411e04
[Server] |-- fabric-data-generation-api-v1 22.2.10+20ea1e2304
[Server] |-- fabric-dimensions-v1 4.0.10+7feeb73304
[Server] |-- fabric-entity-events-v1 2.0.13+1934821104
[Server] |-- fabric-events-interaction-v0 4.0.3+a4eebcf004
[Server] |-- fabric-game-rule-api-v1 1.0.63+7d48d43904
[Server] |-- fabric-item-api-v1 11.2.0+42f2d2ba04
[Server] |-- fabric-item-group-api-v1 4.2.0+fcb9601404
[Server] |-- fabric-key-binding-api-v1 1.0.57+7d48d43904
[Server] |-- fabric-keybindings-v0 0.2.55+df3654b304
[Server] |-- fabric-lifecycle-events-v1 2.5.4+bf2a60eb04
[Server] |-- fabric-loot-api-v2 3.0.36+3f89f5a504
[Server] |-- fabric-loot-api-v3 1.0.24+203e6b2304
[Server] |-- fabric-message-api-v1 6.0.25+7feeb73304
[Server] |-- fabric-model-loading-api-v1 4.3.0+ae23723504
[Server] |-- fabric-networking-api-v1 4.3.10+8998135104
[Server] |-- fabric-object-builder-api-v1 18.0.11+7d48d43904
[Server] |-- fabric-particles-v1 4.0.14+7feeb73304
[Server] |-- fabric-recipe-api-v1 8.0.9+160b66fa04
[Server] |-- fabric-registry-sync-v0 6.1.8+742bac2904
[Server] |-- fabric-renderer-api-v1 5.0.3+50f0feb204
[Server] |-- fabric-renderer-indigo 2.0.3+50f0feb204
[Server] |-- fabric-rendering-data-attachment-v1 0.3.57+73761d2e04
[Server] |-- fabric-rendering-fluids-v1 3.1.19+7feeb73304
[Server] |-- fabric-rendering-v1 10.2.1+0d31b09f04
[Server] |-- fabric-resource-conditions-api-v1 5.0.13+203e6b2304
[Server] |-- fabric-resource-loader-v0 3.0.14+e359e31604
[Server] |-- fabric-screen-api-v1 2.0.38+7feeb73304
[Server] |-- fabric-screen-handler-api-v1 1.3.115+7feeb73304
[Server] |-- fabric-sound-api-v1 1.0.32+7feeb73304
[Server] |-- fabric-tag-api-v1 1.0.5+7d48d43904
[Server] |-- fabric-transfer-api-v1 5.4.9+efa825c904
[Server] -- fabric-transitive-access-wideners-v1 6.3.2+56e78b9b04
[Server] - fabric-language-kotlin 1.13.1+kotlin.2.1.10
[Server] |-- org_jetbrains_kotlin_kotlin-reflect 2.1.10
[Server] |-- org_jetbrains_kotlin_kotlin-stdlib 2.1.10
[Server] |-- org_jetbrains_kotlin_kotlin-stdlib-jdk7 2.1.10
[Server] |-- org_jetbrains_kotlin_kotlin-stdlib-jdk8 2.1.10
[Server] |-- org_jetbrains_kotlinx_atomicfu-jvm 0.27.0
[Server] |-- org_jetbrains_kotlinx_kotlinx-coroutines-core-jvm 1.10.1
[Server] |-- org_jetbrains_kotlinx_kotlinx-coroutines-jdk8 1.10.1
[Server] |-- org_jetbrains_kotlinx_kotlinx-datetime-jvm 0.6.1
[Server] |-- org_jetbrains_kotlinx_kotlinx-io-bytestring-jvm 0.6.0
[Server] |-- org_jetbrains_kotlinx_kotlinx-io-core-jvm 0.6.0
[Server] |-- org_jetbrains_kotlinx_kotlinx-serialization-cbor-jvm 1.8.0
[Server] |-- org_jetbrains_kotlinx_kotlinx-serialization-core-jvm 1.8.0
[Server] -- org_jetbrains_kotlinx_kotlinx-serialization-json-jvm 1.8.0
[Server] - fabricloader 0.16.10
[Server] -- mixinextras 0.4.1
[Server] - fabricproxy-lite 2.9.0
[Server] -- com_moandjiezana_toml_toml4j 0.7.2
[Server] - jade 17.2.2+fabric
[Server] - java 21
[Server] - krypton 0.2.8
[Server] -- com_velocitypowered_velocity-native 3.3.0-SNAPSHOT
[Server] - lithium 0.14.7+mc1.21.4
[Server] - magiclib 0.8.662+2faeacf-stable
[Server] |-- magiclib-1_21_4 0.8.39+d2350d0-stable
[Server] |-- magiclib_core 0.8.138+d2350d0-stable
[Server] |-- magiclib_malilib_extra 0.8.69+d2350d0-stable
[Server] -- magiclib_minecraft_api 0.6.83+618e73f-stable
[Server] - minecraft 1.21.4
[Server] - nochatreports 1.21.4-v2.11.0
[Server] - noisium 2.5.0+mc1.21.4
[Server] - notenoughanimations 1.9.2
[Server] - owo 0.12.20+1.21.4
[Server] |-- blue_endless_jankson 1.2.2
[Server] |-- io_wispforest_endec 0.1.9
[Server] |-- io_wispforest_endec_gson 0.1.6
[Server] |-- io_wispforest_endec_jankson 0.1.6
[Server] -- io_wispforest_endec_netty 0.1.5
[Server] - packetfixer 1.5.0
[Server] - placeholder-api 2.5.2+1.21.3
[Server] - quickshulker 1.6.0-1.21.4
[Server] -- kyrptconfig 1.6.0-1.20.4
[Server] - roughlyenoughitems 18.0.796
[Server] -- error_notifier 1.0.11
[Server] - server-replay 1.2.12
[Server] |-- fabric-permissions-api-v0 0.3.3
[Server] |-- inject 2.2.2
[Server] |-- net_mcbrawls_inject_api 2.2.2
[Server] -- net_mcbrawls_inject_http 2.2.2
[Server] - servux 0.5.1
[Server] -- fabric-permissions-api-v0 0.3.3
[Server] - skinlayers3d 1.7.4
[Server] - sound_physics_remastered 1.21.4-1.4.8
[Server] - spark 1.10.121
[Server] -- fabric-permissions-api-v0 0.3.3
[Server] - syncmatica 0.3.13-sakura.3
[Server] - vmp 0.2.0+beta.7.190+1.21.4
[Server] -- com_ibm_async_asyncutil 0.1.0
[Server] - xaerominimap 25.0.1
[Server] - xaeroworldmap 1.39.3
[Server] - yet_another_config_lib_v3 3.6.2+1.21.4-fabric
[Server] |-- com_twelvemonkeys_common_common-image 3.12.0
[Server] |-- com_twelvemonkeys_common_common-io 3.12.0
[Server] |-- com_twelvemonkeys_common_common-lang 3.12.0
[Server] |-- com_twelvemonkeys_imageio_imageio-core 3.12.0
[Server] |-- com_twelvemonkeys_imageio_imageio-metadata 3.12.0
[Server] |-- com_twelvemonkeys_imageio_imageio-webp 3.12.0
[Server] |-- org_quiltmc_parsers_gson 0.2.1
[Server] -- org_quiltmc_parsers_json 0.2.1

Checklist

• I am using the official version of the mod.
• I tried the latest development version but the issue persists.
• I searched for similar open issues and could not find an existing bug report on this.

Additional context

https://modrinth.com/mod/c2me-fabric/version/MDuPEx6N