500 Internal Server Error/503 Service Not Available

[deHakkelaar]

Are you running this on a Raspberry Pi?
If so, read below:

Network drops almost daily. Rebooting pi-hole fixes it. What's wrong?

One thing to check, if the power supply isnt sufficient, "Under-voltage" can occur causing segmentation errors for processes and potentially even corrupt files on the SD card (see link below): Raspberry Pi Documentation - Raspberry Pi Hardware EDIT: The link changed: You can check the syslogs for under voltage with below: sudo zgrep -i voltage /var/log/syslog* And check the kernel ring buffer logs: dmesg -T | grep -i voltage And check below one: pi@phb5:~ $ vcgencmd get_throttled int t…