Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> ccc575147fd2a1c6c9ba73439ce149933135b37d491f6158c2e838967abd368c:12:46
   |
12 |                         self.transferToken <- collectionRef.withdraw(withdrawID: tokenID)
   |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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