I cannot update staked BEOS

[btcxyzzz]

When I try to update staked BEOS balance in eos-voter 0.7.9 I get this:

Error
The private key used in this wallet cannot perform the selected action.

The 'owner' private key is currently imported, which currently can only be used to issue the 'updateauth' command.
The current private key has insufficient permissions to execute the selected action.
The authorizations of this account no longer matches the key currently imported.


Any solution?