DNS error installing plugins

DarkCorner

Explorer
Joined
Oct 23, 2022
Messages
66
On a latest version of TrueNAS core I tried to install plugins, both from the official repository (NextCloud) and from the Community (ClamAV and Duplicati). In all cases it returns a DNS error when searching for the plugin.
Yet TrueNAS is on the internet, the gateway is correct, the DNS is 8.8.8.8, 8.8.4.4 and from the shell I can ping the google domain.
I have read several messages online, but no suggestions seem to be helpful. They are also related to errors more than a year old, is it possible that the problem is still present?
I must add that their icons do not appear in the plugin list, only the name "clamav icon", "duplicate icon" and so on for all plugins in the two lists.
What's wrong?
 
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