[stein][neutron] l3 agent error

Hello Guys, I've just upgraded from openstack queens to rocky and then to stein on centos 7. In my configuration I have router high availability. After the upgrade and rebooting each controller one by one I get the following errors on all my 3 controllers under /var/log/neutron/l3-agent.log http://paste.openstack.org/show/805407/ If I run openstack router show for for one of uuid in the log: http://paste.openstack.org/show/805408/ Namespace for router in present on all 3 controllers. After the controllers reboot,some routers lost their routing tables, but restarting l3-agent they went ok. Is it possible router ha stopped working? Any idea,please ? Ignazio