Cacti 1.2.19 Division by zero errors

[jdcoats]

2021/10/26 12:34:10 - CMDPHP PHP ERROR WARNING Backtrace: (/poller.php[684]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[582]:process_poller_output(), /lib/poller.php[567]:api_plugin_hook_function(), /lib/plugins.php[146]:api_plugin_run_plugin_hook_function(), /lib/plugins.php[259]:weathermap_poller_output(), /plugins/weathermap/setup.php[728]:CactiErrorHandler())
2021/10/26 12:34:10 - ERROR PHP WARNING in Plugin 'weathermap': Division by zero in file: /var/www/localhost/htdocs/cacti/plugins/weathermap/setup.php on line: 728