DNSMASQ_WARN: dnsmasq warning: Ignoring duplicate dhcp-option 42

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I have Pihole v6, fully updated, running on a Raspberry Pi, bare metal.

Unexpected warning:

In the Tools > PiHole Diagnostics, I get this warning at all times.
DNSMASQ_WARN: dnsmasq warning: Ignoring duplicate dhcp-option 42

I want my NTP server to be used for NTP, as it has a better clock that a Pi. Therefore, the following command shows TWO lines.

sudo grep -n "ntp-server\|dhcp-option.*42" /etc/pihole/dnsmasq.conf
108:dhcp-option=option:ntp-server,0.0.0.0
314:dhcp-option=option:ntp-server,192.168.5.50

Is there anything I can do to stop this warning that serves no point? It always looks like there are issues when I see the little orange icon in the Tools menu. I also fear missing something that actually means something if I get used to ignoring that icon.

Thank you for your help

Disable Pi-hole's NTP server, e.g. via

sudo pihole-FTL --config ntp.ipv4.active false
sudo pihole-FTL --config ntp.ipv6.active false

Note:

DHCP option 42 is ntp-server.

dhcp-option=option:ntp-server,0.0.0.0 is the same as:
dhcp-option=42,0.0.0.0.

This line is added by Pi-hole FTL when ntp.ipv4.active is enabled.

Just disable it, using the commands showed by Bucking_Horn.

Legends. That worked perfect. I appreciate your help.