Been getting this error in console. Not sure what's causing it. The only change I made recently, was within DynamicPVP, in which I set a zone bubble to be 0 darkness so it was invisible, but it's still there.

Failed to call hook 'EraseZone' on plugin 'ZoneManager v3.0.11' (ArgumentNullException: Value cannot be null.
Parameter name: key)
at System.Collections.Generic.Dictionary`2[TKey,TValue].FindEntry (TKey key) [0x00008] in <437ba245d8404784b9fbab9b439ac908>:0
at System.Collections.Generic.Dictionary`2[TKey,TValue].TryGetValue (TKey key, TValue& value) [0x00000] in <437ba245d8404784b9fbab9b439ac908>:0
at Oxide.Plugins.Hash`2[TKey,TValue].TryGetValue (TKey key, TValue& value) [0x00000] in <008b12f41ec4452da1a5497eeb849299>:0
at Oxide.Plugins.ZoneManager.EraseZone (System.String zoneId) [0x00000] in <27f922faff0d4b8e809099718041904c>:0
at Oxide.Plugins.ZoneManager.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x01b40] in <27f922faff0d4b8e809099718041904c>:0
at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <008b12f41ec4452da1a5497eeb849299>:0
at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <ac41dd3599754d448b8c218b34645820>:0
at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <ac41dd3599754d448b8c218b34645820>:0