Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 20f1678b9e90bb690dda61e12a26a5c02fc4df24c44dc9c8d4668ea4b7fb9a7a:13:46
   |
13 |                         self.transferToken <- collectionRef.withdraw(withdrawID: tokenID)
   |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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