Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 8d8d7f43230ac4cac17d9c9e4f8bb51c483a4543fb03a2a726e5f2425b3f8cde:13:46
   |
13 |                         self.transferToken <- collectionRef.withdraw(withdrawID: tokenID)
   |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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