Those 2 rules are offending:

# Accept established
iptables -A INPUT --match state --state ESTABLISHED,RELATED -j ACCEPT
# block 127.0.0.1 on eth0
iptables -A INPUT --match state --state NEW -i eth0 -s 127.0.0.1 -j DROP



The error message is the following:

iptables: No chain/target/match by that name
iptables: No chain/target/match by that name