Information

Minecraft version: 1.16.5
Modloader: Forge
Forge version: 36.2.39
Environment: Multiplayer

Mod name: deathbackup
Mod version: 1.5

Description

Not working as expected.
Almost all the data is missing.
(But it works normally in single-player.)

Maybe caused by 'Corpse Complex'.
I don't play 1.16 anymore, but my last modpack didn't install it, and deathbackup works well.

Can you please post the full mod list (a) on the client and (b) on the server?

[vanilla（内置）], [file/vanilla++.zip（世界）], [mod:create_stuff_additions], [mod:ftbessentials], [mod:supermartijn642configlib], [mod:deleteitem], [mod:areas], [mod:mimi], [mod:simplemagnets], [mod:publicguiannouncement], [mod:opotato], [mod:javd], [mod:gravelminer], [mod:advancementframes], [mod:gateways], [mod:yungsapi], [mod:wstweaks], [mod:toolleveling], [mod:randompatches], [mod:apotheosis], [mod:clickadv], [mod:world_blender], [mod:designermodeling], [mod:delogger], [mod:ninjaphenix_container_lib], [mod:supplementaries], [mod:refinedstorage], [mod:enhanced_snowman], [mod:structure_gel], [mod:torchmaster], [mod:repurposed_structures], [mod:regen], [mod:bk], [mod:propertymodifier], [mod:heyberryshutup], [mod:supermartijn642corelib], [mod:corpsecomplex], [mod:lycanitesmobs], [mod:spark], [mod:curios], [mod:framedblocks], [mod:angelring], [mod:yungsextras], [mod:pettransfer], [mod:enchantato], [mod:wormhole], [mod:globalxp], [mod:forestcraft], [mod:cloth-config], [mod:proplacer], [mod:betterburning], [mod:conjuring], [mod:fastleafdecay], [mod:codechickenlib], [mod:veinmining], [mod:mobifier], [mod:kiwi], [mod:jei], [mod:attributefix], [mod:catlib], [mod:goblintraders], [mod:libraryferret], [mod:caelus], [mod:ringsofascension], [mod:fullstackwatchdog], [mod:naturescompass], [mod:angelblock], [mod:naturalabsorption], [mod:upstream], [mod:champions], [mod:moreleads], [mod:beefix], [mod:environmentalcreepers], [mod:questsadditions], [mod:jeitweaker], [mod:packingtape], [mod:memoryleakfix], [mod:crafttweaker], [mod:gamestages], [mod:forge], [mod:atum], [mod:axesareweapons], [mod:awesomedungeonocean], [mod:dungeons_arise], [mod:coin], [mod:plonk], [mod:overworldmirror], [mod:syp], [mod:inventoryhotswap], [mod:chickenchunks], [mod:simplelogin], [mod:flywheel], [mod:xaerominimap], [mod:pamhc2foodcore], [mod:ftbbackups], [mod:polymorph], [mod:autoreglib], [mod:fastfurnace], [mod:lootr], [mod:aquaculture], [mod:friendlyfire], [mod:cosmeticarmorreworked], [mod:deuf], [mod:responsiveshields], [mod:treechop], [mod:notenoughcrashes], [mod:dungeonsmod], [mod:merenc], [mod:fast_projectile_fix], [mod:netherportalfix], [mod:weeping_angels], [mod:floralench], [mod:suggestionproviderfix], [mod:incontrol], [mod:kleeslabs], [mod:cookingforblockheads], [mod:xaeroworldmap], [mod:structurescompass], [mod:placebo], [mod:citadel], [mod:iceandfire], [mod:temporary_spawners], [mod:bookshelf], [mod:sophisticatedbackpacks], [mod:memorysweep], [mod:uteamcore], [mod:elementalcombat], [mod:the_toolkits], [mod:dragonfight], [mod:potatweaker], [mod:dummmmmmy], [mod:twilightforest], [mod:experiencebugfix], [mod:cuneiform], [mod:anointeditems], [mod:farmersdelight], [mod:dwmh], [mod:usefulbackpacks], [mod:greater_eye], [mod:crashutilities], [mod:getittogetherdrops], [mod:cant-sleep-clowns-will-eat-me], [mod:armiger], [mod:dungeons_enhanced], [mod:wthit], [mod:dimstages], [mod:trofers], [mod:cataclysm], [mod:patchouli], [mod:collective], [mod:firespreadtweaks], [mod:betterstrongholds], [mod:malilib], [mod:expandedstorage], [mod:architectury], [mod:ftblibrary], [mod:ftbteams], [mod:curiouselytra], [mod:cryingportals], [mod:tramplestopper], [mod:twilighttweaks], [mod:letmedespawn], [mod:observable], [mod:servertabinfo], [mod:rhino], [mod:kubejs], [mod:reachfix], [mod:trashslot], [mod:flatbedrock], [mod:itemfilters], [mod:ftbquests], [mod:metalbarrels], [mod:abnormals_core], [mod:bayou_blues], [mod:endergetic], [mod:brazier], [mod:create], [mod:waystones], [mod:artifacts], [mod:skinnedcarts], [mod:spe], [mod:lazydfu], [mod:foodeffects], [mod:blockswap], [mod:fixedanvilrepaircost], [mod:traverse], [mod:potionring], [mod:miningmaster], [mod:mod_lavacow], [mod:deathbackup], [mod:fasterladderclimbing], [mod:xercamusic], [mod:meetyourfight], [mod:terraform], [mod:selene], [mod:swingthroughgrass], [mod:itemstages], [mod:retraining], [mod:towers_of_the_wild], [mod:sketchbookattributes], [mod:quark], [mod:charm], [mod:fastbench], [mod:kryptonreforged], [mod:pickableorbs], [mod:our-villager-discounts], [mod:worldstripper], [mod:ferritecore], [mod:solcarrot], [mod:refinedstorageaddons], [mod:dragonfightconfig], [mod:expandability], [mod:fabric-biome-api], [mod:terrestria], [mod:supersaturation], [mod:openloader], [file/bukkit（世界）], [openloader/data/16], [openloader/data/RS-IAF], [mod:clumps], [mod:starlight], [mod:modernfix], [mod:jeresources], [mod:roadrunner]

Did you install the mod on the server as well?