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`
 --> 9ce427e7ba3e5e0b9e6e043ec044cfeb16d5c30b81c8fdd9e0db44190d68e240:8:20
  |
8 |     prepare(signer: AuthAccount) {
  |                     ^^^^^^^^^^^ not found in this scope

error: cannot access `unstake`: function requires `Withdraw` authorization, but reference is unauthorized
  --> 9ce427e7ba3e5e0b9e6e043ec044cfeb16d5c30b81c8fdd9e0db44190d68e240:15:12
   |
15 |             self.stakeCollectionRef.unstake(id: id)
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^