[Error] 
Access to undeclared static property: CBXVirtualIoFileSystem::$systemEncoding (0)
/home/bitrix/www/bitrix/modules/main/classes/general/virtual_io_filesystem.php:19
#0: CBXVirtualIoFileSystem::ConvertCharset(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/virtual_io_filesystem.php:305
#1: CBXVirtualIoFileSystem->FileExists(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/virtual_io.php:203
#2: CBXVirtualIo->FileExists(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:1821
#3: CAllMain->GetFileAccessPermission(string, array, boolean)
	/home/bitrix/www/bitrix/modules/main/classes/general/user.php:3367
#4: CAllUser::GetFileOperations(array)
	/home/bitrix/www/bitrix/modules/main/classes/general/user.php:3395
#5: CAllUser->CanDoFileOperation(string, array)
	/home/bitrix/www/bitrix/modules/main/include.php:583
#6: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog_before.php:14
#7: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog.php:10
#8: require_once(string)
	/home/bitrix/www/bitrix/header.php:1
#9: require(string)
	/home/bitrix/www/dokumenty/gossluzhba/svedeniya_o_dokhodakh/index.php:2