Transaction

[Error Code: 1101] error caused by: 1 error occurred:
	* transaction preprocess failed: [Error Code: 1101] cadence runtime error: Execution failed:
error: cannot find type in this scope: `AuthAccount`
 --> e855cfa45df7defbee492764daf1fd1c1507ad210b025e38a73030828f892be2:8:20
  |
8 |     prepare(signer: AuthAccount) {
  |                     ^^^^^^^^^^^ not found in this scope

error: cannot access `unstake`: function requires `Withdraw` authorization, but reference is unauthorized
  --> e855cfa45df7defbee492764daf1fd1c1507ad210b025e38a73030828f892be2:15:12
   |
15 |             self.stakeCollectionRef.unstake(id: id)
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^