NRE

[03:17:59][BetterTC] [TCSkinReplace] Error: System.NullReferenceException: Object reference not set to an instance of an object.
  at BaseEntity.SetParent (BaseEntity entity, System.UInt32 boneID, System.Boolean worldPositionStays, System.Boolean sendImmediate) [0x00139] in <a162c575f379443f98b91631025792a6>:0 
  at BaseEntity.SetParent (BaseEntity entity, System.String strBone, System.Boolean worldPositionStays, System.Boolean sendImmediate) [0x00010] in <a162c575f379443f98b91631025792a6>:0 
  at Oxide.Plugins.BetterTC.CopyLock (BaseEntity fromEntity, BaseEntity toEntity) [0x000cb] in <0122e6260d4841ef915517a81ca4e0d0>:0 
  at Oxide.Plugins.BetterTC+<>c__DisplayClass107_0.<TCSkinReplace>b__0 () [0x0016c] in <0122e6260d4841ef915517a81ca4e0d0>:0 
[03:17:59]Exception while calling NextTick callback (NullReferenceException: Object reference not set to an instance of an object.)
  at Oxide.Plugins.SimpleStatus+StatusBehaviour.RepeatCheckModifiers () [0x003ad] in <0122e6260d4841ef915517a81ca4e0d0>:0 
  at Oxide.Plugins.SimpleStatus+StatusBehaviour.ForceCheckModifiers () [0x00007] in <0122e6260d4841ef915517a81ca4e0d0>:0 
  at Oxide.Plugins.SimpleStatus+<>c__DisplayClass25_0.<OnCupboardAuthorize>b__0 () [0x0002d] in <0122e6260d4841ef915517a81ca4e0d0>:0 
  at Oxide.Core.OxideMod.OnFrame (System.Single delta) [0x00051] in <15f61ddda771464d8246ebdce8ff4811>:0 

Hi! Can you give me some context? I'm assuming it happened while changing a Town Centre's skin. Was the Town Centre already in place, or was it just during placement?

Where was the Town Centre in a normal building, or in a structure like a train or something similar?