NullReferenceException at OnPlayerInitError

Here is the error i am seeing:

Is this something we should ignore? 
Is this due to the client not having a bounty?

Failed to call hook 'OnPlayerInit' on plugin 'Bounty v0.2.3' (NullReferenceException: Object reference not set to an instance of an object)
at Oxide.Plugins.Bounty.OnPlayerInit (BasePlayer player) [0x00000] in <e03103b163b34841b7de35825d798ffd>:0
at Oxide.Plugins.Bounty.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x0028c] in <e03103b163b34841b7de35825d798ffd>:0
at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <9affce1cd15c4ec183941adef8db1722>:0
at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <4452f821def6406d834e4149849fe7ea>:0
at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <4452f821def6406d834e4149849fe7ea>:0
Likely your data file is null. Open you /oxide/data/Bounty/bounty_data.json in a text editor, if it only contains the word "null" unload the plugin and delete that file