Linkexchange widget error `TypeError: null has no properties`

[robyedlin]

TypeError: null has no properties
  at ./src/Banner/index.tsx/t.a</this._openTargetUrl(/npm/@linkexchange/widgets@stable:48:95303)
  at P(/npm/@linkexchange/widgets@stable:40:6416)
  at invokeGuardedCallback(/npm/@linkexchange/widgets@stable:40:5695)
  at invokeGuardedCallbackAndCatchFirstError(/npm/@linkexchange/widgets@stable:40:5788)
  at K(/npm/@linkexchange/widgets@stable:40:7463)
  at ee(/npm/@linkexchange/widgets@stable:40:7945)
  at ne(/npm/@linkexchange/widgets@stable:40:8105)
  at J(/npm/@linkexchange/widgets@stable:40:7732)
  at le(/npm/@linkexchange/widgets@stable:40:8839)
  at qt(/npm/@linkexchange/widgets@stable:40:32225)
  at Wt(/npm/@linkexchange/widgets@stable:40:22868)
  at batchedUpdates(/npm/@linkexchange/widgets@stable:40:66195)
  at ut(/npm/@linkexchange/widgets@stable:40:17010)
  at $t(/npm/@linkexchange/widgets@stable:40:23337)