Transaction

[Error Code: 1101] error caused by: 1 error occurred:
	* transaction invocation failed when executing transaction: [Error Code: 1101] cadence runtime error: Execution failed:
  --> d5431d1c6d7cdde2054a31aeb30411a599e8bc372ff9768b8eafa81bf16c160c:20:23
   |
20 |             let nft <- collectionRef.withdraw(withdrawID: nftIds[x])
   |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: panic: missing NFT
   --> cc838e3f0213008f.Epix:103:67