Public Dashboard fails, Unknown plugin

Hello, I use public dashboards. It worked before, but now when I open one of the URLS, I get an Error: Unknown Plugin.

I use the Infinity plugin and I use Inline CSV data using this plugin.

For some reason, this is not allowed anymore?

When I login and open the same link, the dashboard works.
But when I’m not logged in, the Error pops up.
Resulting in no data loaded.

An example URL: Grafana

Any ideas?

It does not happen on Core Datasource plugins.
But i.e. Infinity is non-Core, there the Error occurs.