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
  --> 8475e6339b7d583e7362bb6628a779222df59e4a6877b228dc177bcb58941b87:39:20
   |
39 |                     getAccount(userAddress)
40 |                     .getCapability(/public/flowTokenReceiver)!
41 |                     .borrow<&{FungibleToken.Receiver}>()!
   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^