No polkit found.

Ubuntu-MATE 18.04 when trying to run riseup-vpn get error:

2019/06/29 15:10:17 openvpn stop
2019/06/29 15:10:18 No polkit found

But mate-polkit is running. Both on release and beta channels. If i click ok - bitmsak-systray will shutdown, but if i ignore the message it works. It started today after updating the system.systray.log