NetworkManager errors / warnings

Apr 25 00:22:01 hosting NetworkManager[676]:   [1745558521.6932] platform-linux: do-add-ip6-address[2: fe80::250:56ff:fe40:f5e8]: failure 13 (Permission denied)
Apr 25 00:22:03 hosting NetworkManager[676]:   [1745558523.6955] ipv6ll[7815b866a956efe0,ifindex=2]: changed: no IPv6 link local address to retry after Duplicate Address Detection failures (back off)
Apr 25 00:22:03 hosting NetworkManager[676]:   [1745558523.6958] platform: (eth0) route-sync: failure to add IPv6 route: type unicast fe80::1/128 dev 2 metric 100 mss 0 rt-src user: Permission denied
Apr 25 00:22:13 hosting NetworkManager[676]:   [1745558533.7064] platform-linux: do-add-ip6-address[2: fe80::250:56ff:fe40:f5e8]: failure 13 (Permission denied)
Apr 25 00:22:15 hosting NetworkManager[676]:   [1745558535.7089] ipv6ll[7815b866a956efe0,ifindex=2]: changed: no IPv6 link local address to retry after Duplicate Address Detection failures (back off)
Apr 25 00:22:15 hosting NetworkManager[676]:   [1745558535.7093] platform: (eth0) route-sync: failure to add IPv6 route: type unicast fe80::1/128 dev 2 metric 100 mss 0 rt-src user: Permission denied

Apache log file shows these lines. Should I ignore or should I fix this?

If unused, consider disabling IPv6 to simplify your network stack (I have):
https://webhostinggeeks.com/howto/disable-ipv6-on-redhat-centos-6-centos-7/

IPV6 is already disabled in kernel

Should it be disabled in networkmanager?