Error Cleric Spells

[darksiam]

I just discovered an error in a script called something like cleric spell here I leave the error:

Server Crash Report
===================

******** Version 2.2, Build 4782.3756
Operating System: Microsoft Windows NT 6.1.7600.0
.NET Framework: 2.0.50727.4927
Time: 7/23/2016 5:53:18 PM
Mobiles: 1804
Items: 11104
Exception:
System.NullReferenceException: Referencia a objeto no establecida como instancia de un objeto.
   en Server.Spells.Custom.BanishEvilSpell.Target(Mobile m)
   en Server.Spells.Custom.BanishEvilSpell.InternalTarget.OnTarget(Mobile from, Object o)
   en Server.Targeting.Target.Invoke(Mobile from, Object targeted)
   en Server.Network.PacketHandlers.TargetResponse(NetState state, PacketReader pvSrc)
   en Server.Network.MessagePump.HandleReceive(NetState ns)
   en Server.Network.MessagePump.Slice()
   en Server.Core.Main(String[] args)

Clients:
- Count: 2
+ 127.0.0.1: (account = *******) (mobile = 0x1 '************')
+ 127.0.0.1: (account = 1) (mobile = 0x2 '****************')