compare your docker-compose file with the new docker-compose file for v0.20.0(https://github.com/gravitl/netmaker/blob/release-v0.20.0/compose/docker-compose.yml) ... update your docker compose file by changing the docker image tags for netmaker and netmaker-ui to v0.20.0 and adding any new fields (from the v0.20.0 compose-file) to the your compose file