Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> f1b92197c1601f88b8b5dbf12e82d83d6bc8cb789c27ff50c15268dd42bdb70d:13:46
   |
13 |                         self.transferToken <- collectionRef.withdraw(withdrawID: tokenID)
   |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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