Hi all,
I hope this helps… I was experiencing this issue a couple of days ago, the exact same ‘argument index out of range’ error in the terminal (CMS 2.3.8, Ubuntu 20.10, Snap player 1.8-R6). The player was in touch with the CMS and knew which files it needed, it just wouldn’t download anything.
Eventually figured it out… I’m using Apache for reverse proxy on my CMS server, and the issue started when I put an HTTPS redirect into my port 80 virtual host config. Removing the redirect has solved this problem. If you have a similar config, perhaps give this a go. I’m guessing that changing your XMR public address in your CMS settings from your DNS address to your IP address would possibly also fix this… but that’s just a guess! I will be trying this and switching the redirect back on at some point next week.