Just updated. Getting an error. Thoughts? 

(22:31:40) | Failed to call hook 'OnCollectiblePickup' on plugin 'ZLevelsRemastered v3.0.1' (KeyNotFoundException: The given key was not present in the dictionary.)
  at System.Collections.Generic.Dictionary`2[TKey,TValue].get_Item (TKey key) [0x0001e] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at Oxide.Plugins.ZLevelsRemastered.levelHandler (BasePlayer player, Item item, System.String skill, System.Boolean powerTool) [0x00070] in <0c8359650932457bb9c86e195b9d538a>:0 
  at Oxide.Plugins.ZLevelsRemastered.OnCollectiblePickup (Item item, BasePlayer player, CollectibleEntity entity) [0x00200] in <0c8359650932457bb9c86e195b9d538a>:0 
  at Oxide.Plugins.ZLevelsRemastered.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00986] in <0c8359650932457bb9c86e195b9d538a>:0 
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <60c318df79ed41688ea59335e48d61ad>:0 
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <9882f28dc2204b4dba514a9ad18f5042>:0 
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <9882f28dc2204b4dba514a9ad18f5042>:0

A similar bump after the update

fixed in 3.0.2 :)

Saw another error, just as you posted this.

(13:04:23) | Failed to call hook 'OnDispenserGather' on plugin 'ZLevelsRemastered v3.0.1' (KeyNotFoundException: The given key was not present in the dictionary.)
  at System.Collections.Generic.Dictionary`2[TKey,TValue].get_Item (TKey key) [0x0001e] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at Oxide.Plugins.ZLevelsRemastered.levelHandler (BasePlayer player, Item item, System.String skill, System.Boolean powerTool) [0x00070] in <081123bb2b09405995d4aa2ea89724d0>:0 
  at Oxide.Plugins.ZLevelsRemastered.OnDispenserGather (ResourceDispenser dispenser, BaseEntity entity, Item item) [0x001f9] in <081123bb2b09405995d4aa2ea89724d0>:0 
  at Oxide.Plugins.ZLevelsRemastered.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x008d0] in <081123bb2b09405995d4aa2ea89724d0>:0 
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <60c318df79ed41688ea59335e48d61ad>:0 
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <9882f28dc2204b4dba514a9ad18f5042>:0 
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <9882f28dc2204b4dba514a9ad18f5042>:0​

also fixed in 3.0.2

Still getting errors. Here's my console. 

(13:08:31) | Calling 'OnServerInitialized' on 'ZLevelsRemastered v3.0.2' took 429ms
(13:08:31) | Loaded plugin ZLevelsRemastered v3.0.2 by nivex
(13:08:39) | Failed to call hook 'OnCollectiblePickup' on plugin 'ZLevelsRemastered v3.0.2' (KeyNotFoundException: The given key was not present in the dictionary.)
  at System.Collections.Generic.Dictionary`2[TKey,TValue].get_Item (TKey key) [0x0001e] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at Oxide.Plugins.ZLevelsRemastered.levelHandler (BasePlayer player, Item item, System.String skill, System.Boolean powerTool) [0x0007e] in <b3bbac8d6ae142d2ae1ae2395db0cf0c>:0 
  at Oxide.Plugins.ZLevelsRemastered.OnCollectiblePickup (Item item, BasePlayer player, CollectibleEntity entity) [0x001ed] in <b3bbac8d6ae142d2ae1ae2395db0cf0c>:0 
  at Oxide.Plugins.ZLevelsRemastered.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00b03] in <b3bbac8d6ae142d2ae1ae2395db0cf0c>:0 
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <60c318df79ed41688ea59335e48d61ad>:0 
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <9882f28dc2204b4dba514a9ad18f5042>:0 
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <9882f28dc2204b4dba514a9ad18f5042>:0
(13:08:39) | Failed to call hook 'OnCollectiblePickup' on plugin 'ZLevelsRemastered v3.0.2' (KeyNotFoundException: The given key was not present in the dictionary.)
  at System.Collections.Generic.Dictionary`2[TKey,TValue].get_Item (TKey key) [0x0001e] in <eae584ce26bc40229c1b1aa476bfa589>:0 
  at Oxide.Plugins.ZLevelsRemastered.levelHandler (BasePlayer player, Item item, System.String skill, System.Boolean powerTool) [0x0007e] in <b3bbac8d6ae142d2ae1ae2395db0cf0c>:0 
  at Oxide.Plugins.ZLevelsRemastered.OnCollectiblePickup (Item item, BasePlayer player, CollectibleEntity entity) [0x001ed] in <b3bbac8d6ae142d2ae1ae2395db0cf0c>:0 
  at Oxide.Plugins.ZLevelsRemastered.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00b03] in <b3bbac8d6ae142d2ae1ae2395db0cf0c>:0 
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <60c318df79ed41688ea59335e48d61ad>:0 
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <9882f28dc2204b4dba514a9ad18f5042>:0 
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <9882f28dc2204b4dba514a9ad18f5042>:0​

Fixed the second error in 3.0.3