[TypeError]
count(): Argument #1 ($value) must be of type Countable|array, null given (0)
/var/www/www-root/data/www/vitba.com/local/templates/slabovid_mibok_html/components/db.base/iblock/materials/db.base/iblock.list/.default/template.php:48
#0: include
/var/www/www-root/data/www/vitba.com/bitrix/modules/main/classes/general/component_template.php:790
#1: CBitrixComponentTemplate->__IncludePHPTemplate(array, array, string)
/var/www/www-root/data/www/vitba.com/bitrix/modules/main/classes/general/component_template.php:885
#2: CBitrixComponentTemplate->IncludeTemplate(array)
/var/www/www-root/data/www/vitba.com/bitrix/modules/main/classes/general/component.php:784
#3: CBitrixComponent->showComponentTemplate()
/var/www/www-root/data/www/vitba.com/bitrix/modules/main/classes/general/component.php:724
#4: CBitrixComponent->includeComponentTemplate()
/var/www/www-root/data/www/vitba.com/bitrix/modules/db.base/classes/general/iblock_list_abstract.php:79
#5: ADBIBlockList->executeComponent()
/var/www/www-root/data/www/vitba.com/bitrix/modules/main/classes/general/component.php:668
#6: CBitrixComponent->includeComponent(string, array, object, boolean)
/var/www/www-root/data/www/vitba.com/bitrix/modules/main/classes/general/main.php:1195
#7: CAllMain->IncludeComponent(string, string, array, object)
/var/www/www-root/data/www/vitba.com/local/templates/slabovid_mibok_html/components/db.base/iblock/materials/sections.php:14
#8: include(string)
/var/www/www-root/data/www/vitba.com/bitrix/modules/main/classes/general/component_template.php:790
#9: CBitrixComponentTemplate->__IncludePHPTemplate(array, array, string)
/var/www/www-root/data/www/vitba.com/bitrix/modules/main/classes/general/component_template.php:885
#10: CBitrixComponentTemplate->IncludeTemplate(array)
/var/www/www-root/data/www/vitba.com/bitrix/modules/main/classes/general/component.php:784
#11: CBitrixComponent->showComponentTemplate()
/var/www/www-root/data/www/vitba.com/bitrix/modules/main/classes/general/component.php:724
#12: CBitrixComponent->includeComponentTemplate(string)
/var/www/www-root/data/www/vitba.com/local/components/db.base/iblock/component.php:101
#13: include(string)
/var/www/www-root/data/www/vitba.com/bitrix/modules/main/classes/general/component.php:615
#14: CBitrixComponent->__includeComponent()
/var/www/www-root/data/www/vitba.com/bitrix/modules/main/classes/general/component.php:692
#15: CBitrixComponent->includeComponent(string, array, boolean, boolean)
/var/www/www-root/data/www/vitba.com/bitrix/modules/main/classes/general/main.php:1195
#16: CAllMain->IncludeComponent(string, string, array, boolean)
/var/www/www-root/data/www/vitba.com/cooperation/advertising-materials/index.php:69
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