[Error] 
Call to undefined function mysql_query() (0)
/home/bitrix/shared-student/bitrix/modules/main/classes/mysql/database_mysql.php:47
#0: CDatabase->QueryInternal(string)
	/home/bitrix/shared-student/bitrix/modules/main/classes/mysql/database.php:161
#1: CDatabaseMysql->Query(string, boolean, string)
	/home/bitrix/shared-student/bitrix/modules/main/classes/mysql/main.php:96
#2: CMain->GetLang()
	/home/bitrix/shared-student/bitrix/modules/main/include.php:48
#3: require_once(string)
	/home/bitrix/shared-student/bitrix/modules/main/include/prolog_before.php:14
#4: require_once(string)
	/home/bitrix/shared-student/bitrix/modules/main/include/prolog.php:10
#5: require_once(string)
	/home/bitrix/shared-student/bitrix/header.php:1
#6: require(string)
	/home/bitrix/ext_www/XN--H1AAKGNRYD5B.XN--P1AI/personal/price-list/index.php:2