Hey mate, regarding this error: You also face this only when using the adapter as WiFi hotspot, respectively in AP mode, right? I tried to track it down a bit here: orange pi zero 3 randomly freezes under load · Issue #7488 · MichaIng/DietPi · GitHub
How did you setup the hotspot? Just via dietpi-software
WiFi hotspot, or some custom hostapd
setup or differently? And if you have a chance to test whether disabling IPv6 helps, if it is/was even enabled, that would be interesting to know.