Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 1108d2087fd4737e896a4c4f0e3f205ae50c8ce53d2a16be22c0fe6ca5a6394f:12:46
   |
12 |                         self.transferToken <- collectionRef.withdraw(withdrawID: tokenID)
   |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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