[Error] 
Call to undefined function Bitrix\Main\DB\mysql_connect() (0)
/home/c/cm93021/public_html/bitrix/modules/main/lib/db/mysqlconnection.php:45
#0: Bitrix\Main\DB\MysqlConnection->connectInternal()
	/home/c/cm93021/public_html/bitrix/modules/main/lib/db/mysqlconnection.php:103
#1: Bitrix\Main\DB\MysqlConnection->queryInternal(string, array, NULL)
	/home/c/cm93021/public_html/bitrix/modules/main/lib/db/connection.php:330
#2: Bitrix\Main\DB\Connection->query(string)
	/home/c/cm93021/public_html/bitrix/modules/main/lib/eventmanager.php:243
#3: Bitrix\Main\EventManager->loadEventHandlers()
	/home/c/cm93021/public_html/bitrix/modules/main/lib/eventmanager.php:346
#4: Bitrix\Main\EventManager->findEventHandlers(string, string)
	/home/c/cm93021/public_html/bitrix/modules/main/classes/general/module.php:340
#5: GetModuleEvents(string, string, boolean)
	/home/c/cm93021/public_html/bitrix/modules/main/include.php:283
#6: require_once(string)
	/home/c/cm93021/public_html/bitrix/modules/main/include/prolog_before.php:14
#7: require_once(string)
	/home/c/cm93021/public_html/bitrix/modules/main/include/prolog.php:10
#8: require_once(string)
	/home/c/cm93021/public_html/bitrix/header.php:1
#9: require(string)
	/home/c/cm93021/ricci2/public_html/catalog/index.php:2
#10: include_once(string)
	/home/c/cm93021/public_html/bitrix/modules/main/include/urlrewrite.php:159
#11: include_once(string)
	/home/c/cm93021/public_html/bitrix/urlrewrite.php:2