Transaction

[Error Code: 1101] error caused by: 1 error occurred:
	* transaction preprocess failed: [Error Code: 1101] cadence runtime error: Execution failed:
error: cannot move nested resource
  --> 8049f3622b6d4580a76a5a7bba79b84c468f0da074e7125cd6c12a16e43c51f7:89:32
   |
89 |             let nft <- self.nfts[nftId]! <- nil
   |                                 ^^^^^^^

error: cannot assign to unassignable expression
  --> 8049f3622b6d4580a76a5a7bba79b84c468f0da074e7125cd6c12a16e43c51f7:89:32
   |
89 |             let nft <- self.nfts[nftId]! <- nil
   |                                 ^^^^^^^^