Please follow the below template, it will help us to help you!
Expected Behaviour:
should complete update without error
Actual Behaviour:
pihole -up
[i] Checking for updates...
[i] Pi-hole Core: up to date
[i] FTL: update available
[i] FTL out of date
[i] FTL Checks...
[i] Downloading and Installing FTL...curl: (22) The requested URL returned error: 404 Not Found
[✗] Downloading and Installing FTL
Error: URL not found
ALSO:
pihole -r
[✓] Root user check
[✗] Unsupported RPM based distribution