Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 45b75c2017d1b1e0d7599563b182a6d5166cfa472072d8e49d944a81a6246813:13:46
   |
13 |                         self.transferToken <- collectionRef.withdraw(withdrawID: tokenID)
   |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:218:63