As instructed, I'm posting here the error I received today when opening my Unraid dashboard. Syslog report a huge number of failed NUT reconnection attempts, so I restarted the plugin, and those errors no longer show up in the diagnostics. Of course, I don't know whether this is related to the memory issue. The diagnostics, downloaded right afterwards, are attached. Thanks for support.
unraid-diagnostics-20260924-1922.zip