Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: unexpectedly found nil while forcing an Optional value
  --> 6eb7c035e1bfb4242ce58f4ec46d22cd9e8a8bd7adf860b86709272d9052c248:15:129
   |
15 |         let depositRef = recipient.getCapability(MusicBlock.CollectionPublicPath)!.borrow<&{NonFungibleToken.CollectionPublic}>()!
   |                                                                                                                                  ^