Hello, i’ve encounter the same problem as you when i tried to set up proxy on a interface different from the GREEN one, in my case it was the BLUE interface.
To solve the issue from ssh you can specify the log file i.e.
/usr/sbin/lightparser.pl -d -y /var/log/squid/access_blue.log
If the interface where the proxy is enable it’s the green, try to just run lightparser.pl with the -d to enable the debug and check what file is using to parse the logs:
[root@rt01 ~]# /usr/sbin/lightparser.pl -d
>>> use file :: /var/log/squid/access.log
>>> Make Report 20200210 (1505 - log line parsed)
>>> Make Report 20200211 (1925 - log line parsed)
>>> Make Report 20200212 (3025 - log line parsed)
>>> Make Report 20200213 (4586 - log line parsed)
>>> Make Report 20200214 (3570 - log line parsed)
Cheers