[BUG] display-auto-despawn warning console spam

[KermX]

Description

Console spam with display-auto-despawn option turned on. This warning appears to not cause any real issues in game to my knowledge.

[09:32:57 WARN]: [QuickShop] Task #1020 for QuickShop v5.1.2.5 generated an exception
java.lang.NullPointerException: null
        at java.util.Objects.requireNonNull(Objects.java:233) ~[?:?]
        at org.maxgamer.quickshop.shop.VirtualDisplayItem.isSpawned(VirtualDisplayItem.java:249) ~[QuickShop-5.1.2.5.jar:?]
        at org.maxgamer.quickshop.watcher.DisplayAutoDespawnWatcher.run(DisplayAutoDespawnWatcher.java:82) ~[QuickShop-5.1.2.5.jar:?]
        at org.bukkit.craftbukkit.v1_20_R1.scheduler.CraftTask.run(CraftTask.java:101) ~[pufferfish-1.20.1.jar:git-Pufferfish-"979d3a2"]
        at org.bukkit.craftbukkit.v1_20_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:480) ~[pufferfish-1.20.1.jar:git-Pufferfish-"979d3a2"]
        at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:1481) ~[pufferfish-1.20.1.jar:git-Pufferfish-"979d3a2"]
        at net.minecraft.server.dedicated.DedicatedServer.tickChildren(DedicatedServer.java:449) ~[pufferfish-1.20.1.jar:git-Pufferfish-"979d3a2"]
        at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1395) ~[pufferfish-1.20.1.jar:git-Pufferfish-"979d3a2"]
        at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1172) ~[pufferfish-1.20.1.jar:git-Pufferfish-"979d3a2"]
        at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:319) ~[pufferfish-1.20.1.jar:git-Pufferfish-"979d3a2"]
        at java.lang.Thread.run(Thread.java:1583) ~[?:?]

Steps to reproduce

1. enable display-auto-despawn
2. observer console when shops are loaded

Expected Behaviour

Quickshop should not spam console.

Screenshots

/qs paste URL

https://paste.helpch.at/otizabavud

Additional Context

No response

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Title: [BUG] display-auto-despawn warning console spam

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