Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: unexpectedly found nil while forcing an Optional value
  --> 9ebefc67bb45b44b534eb8608d589c7c66ceb34b63934c7ff593c4c8599eb1bb:14:63
   |
14 |                 .borrow<&{NonFungibleToken.CollectionPublic}>()!
   |                                                                ^