Bulletproof Plate Causes Inaccessibility

If stored clothing contains a bulletproof plate, it will cause an error, preventing the player from opening it.

14:38 [Error] Failed to run a 0.25 timer in 'BankCell v1.0.4' (NullReferenceException: Object reference not set to an instance of an object)
  at Item.MoveToContainer (ItemContainer newcontainer, System.Int32 iTargetPos, System.Boolean allowStack, System.Boolean ignoreStackLimit, BasePlayer sourcePlayer, System.Boolean allowSwap) [0x000ba] in <e86ab4ffe0b94d3ba7333e9531326031>:0
  at Oxide.Plugins.BankCell.BuildItem (System.String ShortName, System.String displayName, System.Int32 Amount, System.UInt64 SkinID, System.Single Condition, System.Int32 blueprintTarget, Oxide.Plugins.BankCell+Weapon weapon, System.Collections.Generic.List`1[T] Content, System.Int32 genes, System.String text) [0x00082] in <a272b6a7f8754303bccf4b172254d875>:0
  at Oxide.Plugins.BankCell.OpenBank (BasePlayer player, System.Int32 slots) [0x000d5] in <a272b6a7f8754303bccf4b172254d875>:0
  at Oxide.Plugins.BankCell+<>c__DisplayClass12_0.<cmdChat>b__0 () [0x00000] in <a272b6a7f8754303bccf4b172254d875>:0
  at Oxide.Core.Libraries.Timer+TimerInstance.FireCallback () [0x00018] in <d646191a355d43a6b3ab36b7ee14c740>:0