I did a search for this error and saw a couple of posts relating to Infuse 5 as well as some involving Plex.
I am getting this error on a daily basis when updating the library and then when trying to play a file I get the “error occured” message.
I force quit infuse on the ATV and then it seems fine. That is until i switch off the ATV (sleep) and boot up the next day.
I am running Infuse Pro 6.2.7
I do not connect via Plex
ATV 13.3.1 (4K)
Shares are on a WD Mycloud (Not WD Mycloud Home)
Shares are via SMB
ATV connected via GB Ethernet Cable
WD Mycloud connected via GB Ethernet Cable
When you have had the problem I suggest that you use the option at the end of the menu in settings to submit diagnostics and raise a support issue. Then maybe Firecore can work out what is going wrong from the diagnostics?
Does the hard disk in the WD Mycloud spin down if not accessed? I’m wondering if it too slow starting up and Infuse is setting an error which it is caching and which is only cleared when the app is restarted. I’m also wondering if when the ATV is sleeping (rather than off) if it can periodically wake up to allow Infuse to do some background processing and it is during this that the error initially occurs … this is all pure speculation on my part.
I very occasionally (like less than once a month) see the behaviour you describe which a restart appears to be the only fix, but I certainly haven’t seen it as reproducible as your case.