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: unexpectedly found nil while forcing an Optional value
  --> 7ad8b82a0dc991cd651bc8f900b0d5ea36acab65a192899968bbf4a2198d8e0b:32:29
   |
32 |             let collection = collectionCap.borrow()!
   |                              ^^^^^^^^^^^^^^^^^^^^^^^