Fatal error: Uncaught TypeError: sizeof(): Argument #1 ($value) must be of type Countable|array, null given in /home/toyama-iot/include/umclass_pc.php:157
Stack trace:
#0 /home/toyama-iot/include/umclass_pc.php(47): UM->get_npsn_list()
#1 /home/toyama-iot/public_html/router.php(62): UM->um_exec()
#2 {main}
thrown in /home/toyama-iot/include/umclass_pc.php on line 157