Unable to start opendistro kibana

Hello all,
I followed this link to install Kibana (windows installation):


I’m getting an error while running “Kibana.bat”:

“FATAL Error: Document “default” has property “space” which belongs to a more recent version of Kibana (6.6.0).”

Elasticsearch 7.6.2 is installed, service is running and reachable.
Is anyone encountered this error? your help will be much appreciated.

Thanks in advance.