Can't find a backend (ipchains or ipfwadm or ipfw or ipf) at /usr/local/bandmin/IP/Acct.pm line 55. My own server spams the shit out of me with this output, seriously like 1 every 10 minutes I dont remember ever installing whatever that is on my server
I think you are getting bandmin cron emails. Not sure if you are using cPanel but on cPanel server this cron runs every 5 minutes. You can try upcp to fix this error on cPanel server. Kailash