Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, null given in /home/ayana-nakamura/www/2024/hcms/activity/detail.model.php:50 Stack trace: #0 /home/ayana-nakamura/www/2024/hcms/libs/Model.php(18): DetailModel->index() #1 /home/ayana-nakamura/www/2024/hcms/common.php(97): Model->runMethod() #2 /home/ayana-nakamura/www/2024/activity/detail.php(3): require_once('...') #3 {main} thrown in /home/ayana-nakamura/www/2024/hcms/activity/detail.model.php on line 50