Fatal error: Uncaught Error: Call to undefined function DB\mysql_connect() in /home/nationah/public_html/epharmacy/system/library/db/mysql.php:7 Stack trace: #0 /home/nationah/public_html/epharmacy/system/library/db.php(9): DB\MySQL->__construct('localhost', 'nationah_data', 'Dhaka@123', 'nationah_data', '3306') #1 /home/nationah/public_html/epharmacy/system/framework.php(36): DB->__construct('mysql', 'localhost', 'nationah_data', 'Dhaka@123', 'nationah_data', '3306') #2 /home/nationah/public_html/epharmacy/system/startup.php(124): require_once('/home/nationah/...') #3 /home/nationah/public_html/epharmacy/index.php(19): start('catalog') #4 {main} thrown in /home/nationah/public_html/epharmacy/system/library/db/mysql.php on line 7