Fatal error: Uncaught TypeError: fwrite(): Argument #1 ($stream) must be of type resource, false given in /var/www/html/PI_WEB/ewt/pi_student/assets/class/db/db.class.php:562
Stack trace:
#0 /var/www/html/PI_WEB/ewt/pi_student/assets/class/db/db.class.php(562): fwrite()
#1 /var/www/html/PI_WEB/ewt/pi_student/assets/class/db/db.class.php(210): db::checkError()
#2 /var/www/html/PI_WEB/ewt/pi_student/assets/class/module/calendar.class.php(286): db::getFetch()
#3 /var/www/html/PI_WEB/ewt/pi_student/calendar_view.php(5): calendar::getUser()
#4 {main}
thrown in /var/www/html/PI_WEB/ewt/pi_student/assets/class/db/db.class.php on line 562