CODE_ERROR

There is an error in the cadence code of this transaction.

[Error Code: 1101] error caused by: 1 error occurred: * transaction execute failed: [Error Code: 1101] cadence runtime error: Execution failed: --> 42aaa53fdd5f0683f42ae059ceefee9a45824001fdfe41562d3c60f4e5162378:24:10 | 24 | self.Administrator.mintNFT(creatorId: creatorIds[i], description: textContents[i], recipient: recipients[i]) | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ --> 1d9428eec06fdb68.Memento:417:20 | 417 | self.isMintingAvailable(creatorId, description): "Minting for this NFT has ended or reached max supply." | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ --> 1d9428eec06fdb68.Memento:442:31 | 442 | let metadata = Memento.getNFTMetadata(creatorId, description)! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ --> 1d9428eec06fdb68.Memento:530:50 | 530 | let metadatas: Memento.NFTMetadata? = metadatasRef.findMetadata(creatorId, description) | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: unexpectedly found nil while forcing an Optional value --> 1d9428eec06fdb68.Memento:84:48 | 84 | let metadatas = self.creatorsIds[creatorId]! | ^^^^^^^^^^^^