I’m the author of macropower-analytics-panel. Without further logs it’s difficult to be sure, but I think I was able to replicate this issue. If you look in your Grafana logs and see “access is forbidden to executable plugin file”, then I was able to replicate. This issue seems to be due to a security change made in Grafana 8.0 (which I’m guessing was also pulled into Enterprise 7.x), which refuses to load plugins that have the execute bit set on files.
I created an issue to track this here: https://github.com/MacroPower/macropower-analytics-panel/issues/21. I’ve included a workaround there (just a chmod command), but will try to get it fixed properly in a new release soon (likely v2.0.1).
In the future if you have any problems or need help with the panel, please create an issue here: https://github.com/MacroPower/macropower-analytics-panel/issues/new. I usually respond pretty fast to problems like this assuming I know about them!