Transaction

[Error Code: 1101] error caused by: 1 error occurred:
	* transaction execute failed: [Error Code: 1101] cadence runtime error: Execution failed:
error: failed to save object: path /storage/NFTKredCollection in account 0x620f0847ffa11e36 already stores an object
  --> c22a8ed0e875d455398b0f2ef207b5d8865bf3258b13ab701bac2de57b3dca40:11:24
   |
11 |                         acct.save<@NonFungibleToken.Collection>(<-collection, to: /storage/NFTKredCollection)
   |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^