[Error] 
[] operator not supported for strings (0)
/var/www/vhosts/findiplom.com/httpdocs/bx_core/bitrix/modules/iblock/classes/general/iblockproperty.php:34
#0: CAllIBlockProperty::GetList
	/var/www/vhosts/findiplom.com/httpdocs/bx_core/bitrix/modules/iblock/classes/general/iblockelement.php:2839
#1: CAllIBlockElement::PrepareGetList
	/var/www/vhosts/findiplom.com/httpdocs/bx_core/bitrix/modules/iblock/classes/mysql/iblockelement.php:339
#2: CIBlockElement::GetList
	/var/www/vhosts/findiplom.com/httpdocs/about/detail.php:140
#3: include_once(string)
	/var/www/vhosts/findiplom.com/httpdocs/bx_core/bitrix/modules/main/include/urlrewrite.php:159
#4: include_once(string)
	/var/www/vhosts/findiplom.com/httpdocs/bx_core/bitrix/urlrewrite.php:2