Console error when attempting to edit a vault name or icon

[johncross54]

Whenever i middle click to edit the name, or right click to edit the icon of a vault, i am met with this error:

[21:03:33 ERROR]: [PlayerVaultsGUI] Exception while trying to run action for click on GuiElementGroup in slot 10 of &f[&4Player Vaults Menu&f] GUI!
[21:03:33 WARN]: java.lang.NoClassDefFoundError: Could not initialize class net.wesjd.anvilgui.AnvilGUI
[21:03:33 WARN]: at PlayerVaultsGUI (1).jar//net.poweredbyawesome.playervaultsgui.WindowManager.createButton(WindowManager.java:227)
[21:03:33 WARN]: at PlayerVaultsGUI (1).jar//net.poweredbyawesome.playervaultsgui.WindowManager.lambda$buildGroup$5(WindowManager.java:192)
[21:03:33 WARN]: at PlayerVaultsGUI (1).jar//net.poweredbyawesome.playervaultsgui.inventorygui.GuiElementGroup.lambda$new$0(GuiElementGroup.java:50)
[21:03:33 WARN]: at PlayerVaultsGUI (1).jar//net.poweredbyawesome.playervaultsgui.inventorygui.InventoryGui$GuiListener.onInventoryClick(InventoryGui.java:783)
[21:03:33 WARN]: at com.destroystokyo.paper.event.executor.MethodHandleEventExecutor.execute(MethodHandleEventExecutor.java:40)
[21:03:33 WARN]: at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:76)
[21:03:33 WARN]: at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70)
[21:03:33 WARN]: at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:680)
[21:03:33 WARN]: at net.minecraft.server.network.PlayerConnection.a(PlayerConnection.java:3254)
[21:03:33 WARN]: at net.minecraft.network.protocol.game.PacketPlayInWindowClick.a(PacketPlayInWindowClick.java:58)
[21:03:33 WARN]: at net.minecraft.network.protocol.game.PacketPlayInWindowClick.a(PacketPlayInWindowClick.java:23)
[21:03:33 WARN]: at net.minecraft.network.protocol.PlayerConnectionUtils.lambda$ensureRunningOnSameThread$1(PlayerConnectionUtils.java:51)
[21:03:33 WARN]: at net.minecraft.server.TickTask.run(TickTask.java:18)
[21:03:33 WARN]: at net.minecraft.util.thread.IAsyncTaskHandler.d(IAsyncTaskHandler.java:153)
[21:03:33 WARN]: at net.minecraft.util.thread.IAsyncTaskHandlerReentrant.d(IAsyncTaskHandlerReentrant.java:24)
[21:03:33 WARN]: at net.minecraft.server.MinecraftServer.b(MinecraftServer.java:1368)
[21:03:33 WARN]: at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:197)
[21:03:33 WARN]: at net.minecraft.util.thread.IAsyncTaskHandler.x(IAsyncTaskHandler.java:126)
[21:03:33 WARN]: at net.minecraft.server.MinecraftServer.bh(MinecraftServer.java:1345)
[21:03:33 WARN]: at net.minecraft.server.MinecraftServer.x(MinecraftServer.java:1338)
[21:03:33 WARN]: at net.minecraft.util.thread.IAsyncTaskHandler.c(IAsyncTaskHandler.java:136)
[21:03:33 WARN]: at net.minecraft.server.MinecraftServer.i_(MinecraftServer.java:1316)
[21:03:33 WARN]: at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:1204)
[21:03:33 WARN]: at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:321)
[21:03:33 WARN]: at java.base/java.lang.Thread.run(Thread.java:833)

I see this hasn't been touched for over 2 years, but it's such a nice QoL change that i was hoping it might get looked at in the off chance! Thanks!