Hi everyone .

I'm new in OpenStack . I installed neutron in Ubuntu server 18.04 . my problem is neutron-l3-agent.log return this error

2019-11-28 21:01:59.102 12680 ERROR neutron     return cctxt.call(context, 'get_host_ha_router_count', host=self.host)
2019-11-28 21:01:59.102 12680 ERROR neutron   File "/usr/lib/python3/dist-packages/neutron_lib/rpc.py", line 157, in call
2019-11-28 21:01:59.102 12680 ERROR neutron     return self._original_context.call(ctxt, method, **kwargs)
2019-11-28 21:01:59.102 12680 ERROR neutron   File "/usr/lib/python3/dist-packages/oslo_messaging/rpc/client.py", line 178, in call
2019-11-28 21:01:59.102 12680 ERROR neutron     retry=self.retry)
2019-11-28 21:01:59.102 12680 ERROR neutron   File "/usr/lib/python3/dist-packages/oslo_messaging/transport.py", line 127, in _send
2019-11-28 21:01:59.102 12680 ERROR neutron     retry=retry)
2019-11-28 21:01:59.102 12680 ERROR neutron   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/amqpdriver.py", line 644, in send
2019-11-28 21:01:59.102 12680 ERROR neutron     call_monitor_timeout, retry=retry)
2019-11-28 21:01:59.102 12680 ERROR neutron   File "/usr/lib/python3/dist-packages/oslo_messaging/_drivers/amqpdriver.py", line 635, in _send
2019-11-28 21:01:59.102 12680 ERROR neutron     raise result
2019-11-28 21:01:59.102 12680 ERROR neutron oslo_messaging.rpc.client.RemoteError: Remote error: DBError (pymysql.err.InternalError) (1054, "Unknown column 'routers.project_id' in 'field list'") [SQL: 'SELECT routers.project_id AS routers_project_id, routers.id AS routers_id, routers.name AS routers_name, routers.status AS routers_status, routers.admin_state_up AS routers_admin_state_up, routers.gw_port_id AS routers_gw_port_id, routers.flavor_id AS routers_flavor_id, routers.standard_attr_id AS routers_standard_attr_id, routers.enable_snat AS routers_enable_snat, standardattributes_1.id AS standardattributes_1_id, standardattributes_1.resource_type AS standardattributes_1_resource_type, standardattributes_1.description AS standardattributes_1_description, standardattributes_1.revision_number AS standardattributes_1_revision_number, standardattributes_1.created_at AS standardattributes_1_created_at, standardattributes_1.updated_at AS standardattributes_1_updated_at, ports_1.project_id AS ports_1_project_id, ports_1.id AS ports_1_id, ports_1.name AS ports_1_name, ports_1.network_id AS ports_1_network_id, ports_1.mac_address AS ports_1_mac_address, ports_1.admin_state_up AS ports_1_admin_state_up, ports_1.status AS ports_1_status, ports_1.device_id AS ports_1_device_id, ports_1.device_owner AS ports_1_device_owner, ports_1.ip_allocation AS ports_1_ip_allocation, ports_1.standard_attr_id AS ports_1_standard_attr_id, portdnses_1.port_id AS portdnses_1_port_id, portdnses_1.current_dns_name AS portdnses_1_current_dns_name, portdnses_1.current_dns_domain AS portdnses_1_current_dns_domain, portdnses_1.previous_dns_name AS portdnses_1_previous_dns_name, portdnses_1.previous_dns_domain AS portdnses_1_previous_dns_domain, portdnses_1.dns_name AS portdnses_1_dns_name, portdnses_1.dns_domain AS portdnses_1_dns_domain, portsecuritybindings_1.port_id AS portsecuritybindings_1_port_id, portsecuritybindings_1.port_security_enabled AS portsecuritybindings_1_port_security_enabled, qos_network_policy_bindings_1.policy_id AS qos_network_policy_bindings_1_policy_id, qos_network_policy_bindings_1.network_id AS qos_n