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
  --> 6deb40686010537d71b25b7890096341e2b2032e6b1a047c4c89d139d6f171ed:9:22
   |
 9 |     let publicVault = sender
10 |       .getCapability(/public/flowTokenColdStorage)!
11 |       .borrow<&ColdStorage.Vault{ColdStorage.PublicVault}>()!
   |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^