Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> cf285d637d4dec60cbc3a075c5994af8e8af857dbd5d839961f62d27e5b6e9ea:13:46
   |
13 |                         self.transferToken <- collectionRef.withdraw(withdrawID: tokenID)
   |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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