Error loading: pmm-qan-app-panel

We start using pmm about 3 months ago and now we are facing some errors in dashboards. We are using pmm2 on docker. And we cannot open query analytics there is a error message on that dashboard saying “Error loading: pmm-qan-app-panel”. We also facing some error messages on Home page like Error loading: pmm-check-panel-home and Error loading: pmm-update. I updates Grafana with below commands:

yum update percona-dashboards

rm -rf /var/lib/grafana/plugins/pmm-app/

cp -r /usr/share/percona-dashboards/pmm-app/ /var/lib/grafana/plugins/

supervisorctl restart grafana

grafana-cli plugins ls | grep pmm-app

installed plugins:
pmm-app @ 2.21.0

Thank you for all your help.

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Hi, I suggest you update PMM to the latest available version since 2.21 is quite old. There are more things that need to be updated in addition to the percona-dashboards package. The update should be done through the web interface button ideally.

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