Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 86213f1362c35a69e43bafb12257cd1f52c095a169e69bc4c4f3cff069b08084:12:46
   |
12 |                         self.transferToken <- collectionRef.withdraw(withdrawID: tokenID)
   |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
  --> 8f3e345219de6fed.NFL:69:63