Transaction

[Error Code: 1101] error caused by: 1 error occurred:
	* transaction execute failed: [Error Code: 1101] cadence runtime error: Execution failed:
error: unexpectedly found nil while forcing an Optional value
  --> d9618d27c7862a7522a4fce5ac3c6e7e3fb0ed608a5aefe2fd6b86fc4f065b97:23:26
   |
23 |         let receiverRef = recipientAccount.capabilities.borrow<&{FungibleToken.Receiver}>(/public/exampleTokenReceiver)!
   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^