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
  --> 334ac5694931b2c8c6b4ca6d2eadb732f0a13540c1684d7be76520be6075fe85:53:34
   |
53 |         self.paymentReceiverCap = getAccount(paymentReceiverAddress).capabilities.get<&{FungibleToken.Receiver}>(/public/flowTokenReceiver)!
   |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^