Transaction

[Error Code: 1101] error caused by: 1 error occurred:
	* transaction preprocess failed: [Error Code: 1101] cadence runtime error: Execution failed:
error: mismatched types
  --> c23288fbf3050c3e403c5d6af602a892c41d2055dc4b7e3c708bede0e7587f6b:10:78
   |
10 |             acct.storage.save(<- FlowversePass.createEmptyCollection(nftType: nil), to: FlowversePass.CollectionStoragePath)
   |                                                                               ^^^ expected `Type`, got `Never?`

error: mismatched types
  --> c23288fbf3050c3e403c5d6af602a892c41d2055dc4b7e3c708bede0e7587f6b:15:83
   |
15 |             acct.storage.save(<- FlowverseTreasures.createEmptyCollection(nftType: nil), to: FlowverseTreasures.CollectionStoragePath)
   |                                                                                    ^^^ expected `Type`, got `Never?`