Crash on Player Join

[knniDE]

Since last Update 3.6.1 on Spigot i get following error/crash on Player Join:

[13:47:28] [Server thread/INFO]: Playername[/XXX.XXX.XXX.XXX] logged in with entity id 25 at ([world]-2830.892683689343, 93.0, 2135.162340080868)
[13:47:38] [Paper Watchdog Thread/ERROR]: --- DO NOT REPORT THIS TO PAPER - THIS IS NOT A BUG OR A CRASH  - git-Paper-95 (MC: 1.20.1) ---
[13:47:38] [Paper Watchdog Thread/ERROR]: The server has not responded for 10 seconds! Creating thread dump
[13:47:38] [Paper Watchdog Thread/ERROR]: ------------------------------
[13:47:38] [Paper Watchdog Thread/ERROR]: Server thread dump (Look for plugins here before reporting to Paper!):
[13:47:38] [Paper Watchdog Thread/ERROR]: ------------------------------
[13:47:38] [Paper Watchdog Thread/ERROR]: Current Thread: Server thread
[13:47:38] [Paper Watchdog Thread/ERROR]: 	PID: 29 | Suspended: false | Native: false | State: BLOCKED
[13:47:38] [Paper Watchdog Thread/ERROR]: 	Stack:
[13:47:38] [Paper Watchdog Thread/ERROR]: 		BungeeTabListPlus_BukkitBridge-3.6.1.jar//de.codecrafter47.bungeetablistplus.bridge.AbstractBridge.updateData(AbstractBridge.java:292)
[13:47:38] [Paper Watchdog Thread/ERROR]: 		BungeeTabListPlus_BukkitBridge-3.6.1.jar//codecrafter47.bungeetablistplus.bukkitbridge.BukkitBridge.lambda$onEnable$5(BukkitBridge.java:141)
[13:47:38] [Paper Watchdog Thread/ERROR]: 		BungeeTabListPlus_BukkitBridge-3.6.1.jar//codecrafter47.bungeetablistplus.bukkitbridge.BukkitBridge$$Lambda$8873/0x0000000802779440.run(Unknown Source)
[13:47:38] [Paper Watchdog Thread/ERROR]: 		org.bukkit.craftbukkit.v1_20_R1.scheduler.CraftTask.run(CraftTask.java:101)
[13:47:38] [Paper Watchdog Thread/ERROR]: 		org.bukkit.craftbukkit.v1_20_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:480)
[13:47:38] [Paper Watchdog Thread/ERROR]: 		net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:1480)
[13:47:38] [Paper Watchdog Thread/ERROR]: 		net.minecraft.server.dedicated.DedicatedServer.tickChildren(DedicatedServer.java:447)
[13:47:38] [Paper Watchdog Thread/ERROR]: 		net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1394)
[13:47:38] [Paper Watchdog Thread/ERROR]: 		net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1171)
[13:47:38] [Paper Watchdog Thread/ERROR]: 		net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:318)
[13:47:38] [Paper Watchdog Thread/ERROR]: 		net.minecraft.server.MinecraftServer$$Lambda$4711/0x000000080163a550.run(Unknown Source)
[13:47:38] [Paper Watchdog Thread/ERROR]: 		[email protected]/java.lang.Thread.run(Thread.java:833)
[13:47:38] [Paper Watchdog Thread/ERROR]: ------------------------------
[13:47:38] [Paper Watchdog Thread/ERROR]: --- DO NOT REPORT THIS TO PAPER - THIS IS NOT A BUG OR A CRASH ---
[13:47:38] [Paper Watchdog Thread/ERROR]: ------------------------------

Repeating this error until crash

after a reboot it seems to work normally. However, when I restart the server again it is also like this. What can be the reason?

[knniDE]

I have tested it again in more detail. It doesn't only happen after a server start or when a player joins, but also randomly when a player switches between 2 servers.
The same issue occurs with the latest Dev Build as well.
For this reason, I have switched back to Dev Build #1135, where everything is running stable.