Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: unexpectedly found nil while forcing an Optional value
  --> 349a1b63070209bbaf13a8a7ab00383695bbb8ed05a75ef0bb8828c8b521636f:15:129
   |
15 |         let depositRef = recipient.getCapability(MusicBlock.CollectionPublicPath)!.borrow<&{NonFungibleToken.CollectionPublic}>()!
   |                                                                                                                                  ^