mailpoet cron exception

Hello

using this for linux cron

php /var/www/wordpress_ecopol/wp-content/plugins/mailpoet/mailpoet-cron.php /var/www/wordpress_ecopol/

I get a PHP exception

PHP Fatal error:  Uncaught Error: Call to undefined function mysql_connect() in /var/www/wordpress_ecopol/wp-includes/wp-db.php:1788
Stack trace:
#0 /var/www/wordpress_ecopol/wp-content/plugins/w3-total-cache/DbCache_WpdbNew.php(97): wpdb->db_connect()
#1 /var/www/wordpress_ecopol/wp-includes/wp-db.php(724): W3TC\DbCache_WpdbNew->db_connect()
#2 /var/www/wordpress_ecopol/wp-content/plugins/w3-total-cache/DbCache_WpdbNew.php(218): wpdb->__construct()
#3 /var/www/wordpress_ecopol/wp-content/plugins/w3-total-cache/DbCache_WpdbInjection.php(38): W3TC\DbCache_WpdbNew->default_initialize()
#4 /var/www/wordpress_ecopol/wp-content/plugins/w3-total-cache/DbCache_WpdbNew.php(104): W3TC\DbCache_WpdbInjection->initialize()
#5 /var/www/wordpress_ecopol/wp-content/plugins/w3-total-cache/DbCache_WpdbNew.php(359): W3TC\DbCache_WpdbNew->initialize()
#6 /var/www/wordpress_ecopol/wp-content/plugins/w3-total-cache/DbCache_WpdbInjection_QueryCaching.php(232): W3TC\_CallUnderlying->initialize()
#7 /var/www/wordpress_ecopol/wp-content/plugins/w3-total-cache/DbCache_WpdbNew.php(104): W3TC\DbCache_WpdbInjection_QueryCaching->initialize()
#8 /var/www/wordpress_ecopol/wp-content/plugins/w3-total-cache/DbCache_Wpdb.php(53): W3TC\DbCache_WpdbNew->initialize()
#9 /var/www/wordpress_ecopol/wp-content/db.php(41): W3TC\DbCache_Wpdb::instance()
#10 /var/www/wordpress_ecopol/wp-includes/load.php(549): require_once('...')
#11 /var/www/wordpress_ecopol/wp-settings.php(124): require_wp_db()
#12 /var/www/wordpress_ecopol/wp-config.php(110): require_once('...')
#13 /var/www/wordpress_ecopol/wp-load.php(50): require_once('...')
#14 /var/www/wordpress_ecopol/wp-content/plugins/mailpoet/mailpoet-cron.php(28): require_once('...')
#15 {main}
  thrown in /var/www/wordpress_ecopol/wp-includes/wp-db.php on line 1788

Fatal error: Uncaught Error: Call to undefined function mysql_connect() in /var/www/wordpress_ecopol/wp-includes/wp-db.php:1788
Stack trace:
#0 /var/www/wordpress_ecopol/wp-content/plugins/w3-total-cache/DbCache_WpdbNew.php(97): wpdb->db_connect()
#1 /var/www/wordpress_ecopol/wp-includes/wp-db.php(724): W3TC\DbCache_WpdbNew->db_connect()
#2 /var/www/wordpress_ecopol/wp-content/plugins/w3-total-cache/DbCache_WpdbNew.php(218): wpdb->__construct()
#3 /var/www/wordpress_ecopol/wp-content/plugins/w3-total-cache/DbCache_WpdbInjection.php(38): W3TC\DbCache_WpdbNew->default_initialize()
#4 /var/www/wordpress_ecopol/wp-content/plugins/w3-total-cache/DbCache_WpdbNew.php(104): W3TC\DbCache_WpdbInjection->initialize()
#5 /var/www/wordpress_ecopol/wp-content/plugins/w3-total-cache/DbCache_WpdbNew.php(359): W3TC\DbCache_WpdbNew->initialize()
#6 /var/www/wordpress_ecopol/wp-content/plugins/w3-total-cache/DbCache_WpdbInjection_QueryCaching.php(232): W3TC\_CallUnderlying->initialize()
#7 /var/www/wordpress_ecopol/wp-content/plugins/w3-total-cache/DbCache_WpdbNew.php(104): W3TC\DbCache_WpdbInjection_QueryCaching->initialize()
#8 /var/www/wordpress_ecopol/wp-content/plugins/w3-total-cache/DbCache_Wpdb.php(53): W3TC\DbCache_WpdbNew->initialize()
#9 /var/www/wordpress_ecopol/wp-content/db.php(41): W3TC\DbCache_Wpdb::instance()
#10 /var/www/wordpress_ecopol/wp-includes/load.php(549): require_once('...')
#11 /var/www/wordpress_ecopol/wp-settings.php(124): require_wp_db()
#12 /var/www/wordpress_ecopol/wp-config.php(110): require_once('...')
#13 /var/www/wordpress_ecopol/wp-load.php(50): require_once('...')
#14 /var/www/wordpress_ecopol/wp-content/plugins/mailpoet/mailpoet-cron.php(28): require_once('...')
#15 {main}
  thrown in /var/www/wordpress_ecopol/wp-includes/wp-db.php on line 1788

Thanks for help