Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, null given in /home/httpd/html/ieda.ust.hk/eng/data/pages/faculty-staff.data.php:408 Stack trace: #0 /home/httpd/html/ieda.ust.hk/eng/include/data.inc.php(55): require_once() #1 /home/httpd/html/ieda.ust.hk/eng/include/fe.inc.php(257): require_once('...') #2 /home/httpd/html/ieda.ust.hk/eng/faculty-staff.php(57): require_once('...') #3 {main} thrown in /home/httpd/html/ieda.ust.hk/eng/data/pages/faculty-staff.data.php on line 408