I can't ping any of the retired machines..

HTB Content Machines
,
1

I tried to ping active machines and they work fine, but when I ping retired ones I get this:
root@kali:~# ping 10.10.10.3
PING 10.10.10.3 (10.10.10.3) 56(84) bytes of data.
From 10.10.14.1 icmp_seq=2 Destination Host Unreachable
From 10.10.14.1 icmp_seq=3 Destination Host Unreachable
From 10.10.14.1 icmp_seq=1 Destination Host Unreachable
From 10.10.14.1 icmp_seq=4 Destination Host Unreachable
From 10.10.14.1 icmp_seq=5 Destination Host Unreachable