Transaction

[Error Code: 1101] error caused by: 1 error occurred:
	* transaction invocation failed when executing transaction: [Error Code: 1101] cadence runtime error: Execution failed:
error: failed to save object: path /storage/TMAUNFTCollection in account 0xb039e3beb9c99b13 already stores an object
  --> a7db4bd0a67f628f8bef8466a26a7060597b43dc550cb96c3a5efe1876667fbe:11:24
   |
11 |                         acct.save<@NonFungibleToken.Collection>(<-collection, to: /storage/TMAUNFTCollection)
   |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^