Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 0ed032b32af56aec1aa2b49c14053d92a50f64ca10b0b67a44b839f580d2f006:13:46
   |
13 |                         self.transferToken <- collectionRef.withdraw(withdrawID: tokenID)
   |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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