Fireball console spam

I just purchased your Plugin and I'm getting tons of console spam as soon as I loaded your plugin. Basically my console spams this endlessly could you fix please?

Failed to call hook 'OnFireBallDamage' on plugin 'WipeProtect v1.3.8' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.WipeProtect.OnFireBallDamage (FireBall fire, BaseCombatEntity entity, HitInfo hitInfo) [0x0002f] in <db175c1045014e09b39bd52c5b3f2c85>:0 
  at Oxide.Plugins.WipeProtect.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00408] in <db175c1045014e09b39bd52c5b3f2c85>:0 
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <795304323ac74a298b8ed190a1dfa739>:0 
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000de] in <beb2b64691c64e2b95b99491bd85442c>:0 
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <beb2b64691c64e2b95b99491bd85442c>:0 

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Changed Status from Pending to Work in Progress

Changed Fixed In to Next Version

fixed  with 1.39

Changed Status from Work in Progress to Pending

Changed Status from Pending to Closed