[TypeError] Return value of Vesper\Tools\Courses::checkDiscount() must be of the type array, null returned (0) /var/www/vesperfin.com/local/modules/vesper.tools/lib/courses.php:110 #0: Vesper\Tools\Courses->checkDiscount /var/www/vesperfin.com/local/components/custom/courses.list/class.php:104 #1: CoursesListComponent->initResult /var/www/vesperfin.com/local/components/custom/courses.list/class.php:78 #2: CoursesListComponent->executeComponent /var/www/vesperfin.com/bitrix/modules/main/classes/general/component.php:656 #3: CBitrixComponent->includeComponent /var/www/vesperfin.com/bitrix/modules/main/classes/general/main.php:1063 #4: CAllMain->IncludeComponent /var/www/vesperfin.com/local/components/custom/courses/templates/.default/section.php:24 #5: include(string) /var/www/vesperfin.com/bitrix/modules/main/classes/general/component_template.php:789 #6: CBitrixComponentTemplate->__IncludePHPTemplate /var/www/vesperfin.com/bitrix/modules/main/classes/general/component_template.php:884 #7: CBitrixComponentTemplate->IncludeTemplate /var/www/vesperfin.com/bitrix/modules/main/classes/general/component.php:764 #8: CBitrixComponent->showComponentTemplate /var/www/vesperfin.com/bitrix/modules/main/classes/general/component.php:712 #9: CBitrixComponent->includeComponentTemplate /var/www/vesperfin.com/local/components/custom/courses/class.php:143 #10: CoursesComponent->executeComponent /var/www/vesperfin.com/bitrix/modules/main/classes/general/component.php:656 #11: CBitrixComponent->includeComponent /var/www/vesperfin.com/bitrix/modules/main/classes/general/main.php:1063 #12: CAllMain->IncludeComponent /var/www/vesperfin.com/courses/index.php:11 #13: include_once(string) /var/www/vesperfin.com/bitrix/modules/main/include/urlrewrite.php:159 #14: include_once(string) /var/www/vesperfin.com/bitrix/urlrewrite.php:2