Fatal error: Cannot redeclare bmi_menu()

Fatal error: Cannot redeclare bmi_menu() (previously declared in /mnt/stor2-wc1-dfw1/406765/406776/www.cardiachealth.org/web/content/includes/common.inc(1743) : eval()’d code:7) in /mnt/stor2-wc1-dfw1/406765/406776/www.cardiachealth.org/web/content/includes/common.inc(1743) : eval()’d code on line 20