( ! ) Fatal error: Class Bitrix\Main\DB\MysqliConnection contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (Bitrix\Main\DB\Connection::getType) in /home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php on line 12
Call Stack
#	Time	Memory	Function	Location
1	0.0007	419896	{main}( )	.../index.php:0
2	0.0007	420208	require( '/home/bitrix/www/bitrix/modules/main/include/prolog_before.php' )	.../index.php:11
3	0.0008	423584	require_once( '/home/bitrix/www/bitrix/modules/main/include.php' )	.../prolog_before.php:14
4	0.0018	821640	Bitrix\Main\HttpApplication->initializeExtendedKernel( )	.../include.php:21
5	0.0018	821640	Bitrix\Main\HttpApplication->initializeContext( )	.../application.php:122
6	0.0019	906536	Bitrix\Main\HttpRequest->__construct( )	.../httpapplication.php:42
7	0.0019	907312	Bitrix\Main\HttpRequest->prepareCookie( )	.../httprequest.php:63
8	0.0019	908384	Bitrix\Main\Config\Option::get( )	.../httprequest.php:337
9	0.0019	908784	Bitrix\Main\Config\Option::load( )	.../option.php:53
10	0.0021	916040	Bitrix\Main\Application::getConnection( )	.../option.php:179
11	0.0021	916040	Bitrix\Main\Data\ConnectionPool->getConnection( )	.../application.php:342
12	0.0022	916512	Bitrix\Main\Data\ConnectionPool->createConnection( )	.../connectionpool.php:80
13	0.0022	916512	class_exists ( )	.../connectionpool.php:50
14	0.0022	916624	spl_autoload_call ( )	.../connectionpool.php:50
15	0.0022	916680	Bitrix\Main\Loader::autoLoad( )	.../connectionpool.php:50
16	0.0022	917608	include_once( '/home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php' )	.../loader.php:268