Transaction

[Error Code: 1101] error caused by: 1 error occurred:
	* transaction preprocess failed: [Error Code: 1101] cadence runtime error: Execution failed:
error: value of type `auth(StakingManager.StakingOperator) &StakingManager.Staker` has no member `stake`
  --> 61557178cf0a588087d865cdd39b871d0f3bac6d0c72e1892c9a1a793b5b73d7:13:23
   |
13 |         self.stakerRef.stake(amount)
   |                        ^^^^^ unknown member