NullReferenceException at GetEntityNameError

after installing new plugin ive noticed some errors

(16:32:55) | Failed to call hook 'OnEntityDeath' on plugin 'DeathNotes v6.3.5' (NullReferenceException: Object reference not set to an instance of an object)
at Oxide.Plugins.DeathNotes.GetEntityName (BaseEntity entity, Oxide.Plugins.DeathNotes+CombatEntityType combatEntityType) [0x0012c] in <ea88b4d48f93456bbe4e22e860d6f9f6>:0
at Oxide.Plugins.DeathNotes.GetCustomizedEntityName (BaseEntity entity, Oxide.Plugins.DeathNotes+CombatEntityType combatEntityType) [0x00000] in <ea88b4d48f93456bbe4e22e860d6f9f6>:0
at Oxide.Plugins.DeathNotes.PopulateMessageVariables (System.String message, Oxide.Plugins.DeathNotes+DeathData data) [0x00028] in <ea88b4d48f93456bbe4e22e860d6f9f6>:0
at Oxide.Plugins.DeathNotes.OnEntityDeath (BaseCombatEntity victimEntity, HitInfo hitInfo) [0x000de] in <ea88b4d48f93456bbe4e22e860d6f9f6>:0
at Oxide.Plugins.DeathNotes.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00159] in <ea88b4d48f93456bbe4e22e860d6f9f6>:0
at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <8a646463979e4a1d9c0e2f1298e9483f>:0
at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <953329caf7d943cc9eca5c8b4b890c98>:0
at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <953329caf7d943cc9eca5c8b4b890c98>:0
purged all the old files and let it re-create them, and now seems ok again. thanks for fast reply in any event
hey just started to get this error in our console after the recent Summer DLC update 

Failed to call hook 'OnEntityDeath' on plugin 'DeathNotes v6.3.5' (NullReferenceException: Object reference not set to an instance of an object) at Oxide.Plugins.DeathNotes.GetEntityName (BaseEntity entity, Oxide.Plugins.DeathNotes+CombatEntityType combatEntityType) [0x0012c] in <4739f8ee027c43048a01ee0edc1681c8>:0 at Oxide.Plugins.DeathNotes.GetCustomizedEntityName (BaseEntity entity, Oxide.Plugins.DeathNotes+CombatEntityType combatEntityType) [0x00000] in <4739f8ee027c43048a01ee0edc1681c8>:0 at Oxide.Plugins.DeathNotes.PopulateMessageVariables (System.String message, Oxide.Plugins.DeathNotes+DeathData data) [0x00028] in <4739f8ee027c43048a01ee0edc1681c8>:0 at Oxide.Plugins.DeathNotes.OnEntityDeath (BaseCombatEntity victimEntity, HitInfo hitInfo) [0x000de] in <4739f8ee027c43048a01ee0edc1681c8>:0 at Oxide.Plugins.DeathNotes.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00159] in <4739f8ee027c43048a01ee0edc1681c8>:0 at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in :0 at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in :0 at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in :0

Thanks @shady14u for investigating.