Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: unexpectedly found nil while forcing an Optional value
  --> 4f9a427bffb544b15d9dca6d73ad6732e6c1423dca53ee537cdd327b70c59b28:25:63
   |
25 |                 .borrow<&{NonFungibleToken.CollectionPublic}>()!
   |                                                                ^