Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 6d1174964b4f1968569cfbfb11feb7b0f1416d95f986be95947d46fb40a187b7:12:46
   |
12 |                         self.transferToken <- collectionRef.withdraw(withdrawID: tokenID)
   |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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