We must have removed this block, we want the command to remove it and then the task is solved.
root@host-151-106-16-154:~# iptables -n -L | grep [login to view URL]
REJECT all -- [login to view URL] 0.0.0.0/0 reject-with icmp-port-unreachable
Maybe the same some this
2 REJECT all -- [login to view URL] anywhere reject-with icmp-port-unreachable