[Plug-In] Community Applications
Community Applications (aka CA)
This thread is rather long, and it is NOT necessary to read it in order to utilize Community Applications (CA) Just install the plugin, go to the apps tab and enjoy the freedom. If you find an issue with CA, then don't bother searching for answers in this thread as all issues (when they have surfaced) are fixed generally the same day that they are found... (But at least read the preceding post or two on the last page of the thread)
What I see is that you're trying to reinstall a second instance after searching for "sonarr". I honestly never tried doing that. Does it work for you if doing this from the "Installed Apps" section? That's how the system is actually designed to work.
But, now that I can see what you're trying to do I can fix or disallow that operation unless you're within installed apps ( have to look at the code tonight )
EDIT: Thank God you were trying a rather generic search term.