My Flight Radar 24 raspberry Pi was beginning to get really flakey. It would stay online, not trigger an outage warning from fr24.com but it would just stop sending data. I suspect that the SD cards were causing trouble but there were no obvious log messages showing problems.
Luckily I recently came upon https://forum.flightradar24.com/forum/radar-forums/flightradar24-feeding-data-to-flightradar24/217119-alternatives-to-rpi, which allows you to run a fr24 ADS-B receiver on a x86 instance. I’ve now ported over my ADS-B reciever into a new dedicated virtual server and so far, so good. And one less device to power at home for extra win.