activating private network ip gives weird error in syslog

I activated the private networking ip on my droplet (Following the instructions provided by DO. ). Now that droplet syslog is being spammed with the same error message every 1-2 second.

kernel: [138769.402520] icmp6_send: no reply to icmp error

does someone now where this error is coming from ? and how to fix it?

system and running programs: debian 8.8 php-fpm 7.2.8 apache 2.4 postfix and dovecot


# This file describes the network interfaces available on your
# system and how to activate them. For more information, see
# interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
iface eth0 inet6 static
        address 2A03:B0C0:0001:00D0:0000:0000:18E4:B001
        netmask 64
        gateway 2A03:B0C0:0001:00D0:0000:0000:0000:0001
        autoconf 0
        dns-nameservers 2001:4860:4860::8844 2001:4860:4860::8888
iface eth0 inet static
        up ip addr add dev eth0

auto eth1
iface eth1 inet static

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had a similar error when doing my project so had to add the routing rule by removing IPv6 address from eth0…for details check

I actuated the private systems administration ip on my bead (Following the directions given by DO. ). Perry Moran