Zato installation

Hi all,
I try to create a Zato plaforme with all modules separated. All are OK except the zato server.

One server for: Cluster, Webadmin and Scheduler
One server for: load balancing
One server for : ODB Mysql and Redis
Twos servers for : Zato server

I have this error when i try to start my servers:

2020-04-11 23:50:33,167 - ERROR - 124663:DummyThread-7 - zato:57 - Could not handle broker msg:Bunch(action=u'101802', channel=u'startup-service', cid=u'658ef2b5eadf785716779803', msg_type=u'0001', payload=u'', service=u''), e:`Traceback (most recent call last):
File “/opt/zato/zato/code/zato-broker/src/zato/broker/”, line 52, in on_broker_msg
getattr(self, handler)(msg)
File “/opt/zato/zato/code/zato-server/src/zato/server/base/worker/”, line 1894, in on_broker_msg_SERVICE_PUBLISH
return self.on_message_invoke_service(msg, msg.get(‘channel’) or CHANNEL.INVOKE_ASYNC, ‘SERVICE_PUBLISH’, args)
File “/opt/zato/zato/code/zato-server/src/zato/server/base/worker/”, line 1570, in on_message_invoke_service
service, is_active = self.server.service_store.new_instance_by_name(msg[‘service’])
File “/opt/zato/zato/code/zato-server/src/zato/server/service/”, line 553, in new_instance_by_name
impl_name = self.name_to_impl_name[name]
KeyError: u’’

Any have idea for this error

Thanks in advance for your response

Best regards

Hello Patrick,
Is your Zato installation updated?
Please, can you post the output of the command “zato --version”?
Thank you