Failed to save player data for MrWolfix01

[RitaSister]

Expected behavior

normally use plugin like HeadDataBase for custom Heads, I think plugin compitable with paper, but what with Folia idk

Observed/Actual behavior

while player try use HeadDataBase, catch warn:
net.minecraft.ReportedException: Saving entity NBT
and after a time server stopped while 'WorldEdit' try use HeadDataBase, this plugin will crash server with this reason:
Caused by: java.lang.IllegalStateException: Player name contained disallowed characters: 'Head Database'

Steps/models to reproduce

1. try use HeadDataBase and we catch after a time 'warn' in console
2. WorldEdit event try use new player name and will be crashed with stopping the server:
   2.1 net.minecraft.ReportedException: Exception ticking world
   [14:28:02] [Region shutdown thread/INFO]: [RegionShutdownThread] Awaiting scheduler termination for 60s
   [14:28:02] [Region shutdown thread/INFO]: [RegionShutdownThread] Scheduler halted
   [14:28:02] [Region shutdown thread/INFO]: Stopping server

Plugin and Datapack List

pl
[14:36:23 INFO]: Server Plugins (44):
[14:36:23 INFO]: Paper Plugins:
[14:36:23 INFO]: - CarbonChat, FoliaWorldLoader
[14:36:23 INFO]: Bukkit Plugins:
[14:36:23 INFO]: - AElytra, AquaLimeAdmin, ArmorStandEditor, Brewery, Chunky, CoreProtect, Craftorithm, emotecraft, Essentials, EssentialsSpawn
[14:36:23 INFO]: GSit, HeadDatabase, InvisibleFrames, InvSeePlusPlus, JoinMessenger, LiteBans, LuckPerms, Maintenance, Mclogs, NBTAPI
[14:36:23 INFO]: NewbieFilter, OreAnnouncer, PlaceholderAPI, PlasmoVoice, PlayerHeads, ProtocolLib, pv-addon-discs, pv-addon-groups, pv-addon-lavaplayer-lib, pv-addon-sculk
[14:36:23 INFO]: pv-addon-spectator, SkinsRestorer, spark, squaremap, squaremarker, TAB, UltimateAutoRestart, UralChat, Vault, ViaBackwards
[14:36:23 INFO]: ViaVersion, WorldEdit

Folia version

version
[14:36:24 INFO]: Checking version, please wait...
[14:36:24 INFO]: This server is running Folia version git-Folia-"b1bfe7b" (MC: 1.20.6) (Implementing API version 1.20.6-R0.1-SNAPSHOT) (Git: b1bfe7b on dev/1.20.6)
Error obtaining version information
Previous version: git-Folia-"4b4e25c" (MC: 1.20.6)

Other

latest.log: https://pastes.dev/BEPuX0GvPo

[electronicboy]

The plugin created an improper itemstack, later versions of paper, when rebased, will prevent such items being created in general

[RitaSister]

The plugin created an improper itemstack, later versions of paper, when rebased, will prevent such items being created in general

faulty plugin is 'HeadDataBase'?

[electronicboy]

if that's what created that itemstack, then yes