Fatal error: Uncaught TypeError: usort(): Argument #1 ($array) must be of type array, null given in /home/sscdlse/public_html/swf_index.php:306 Stack trace: #0 /home/sscdlse/public_html/swf_index.php(306): usort() #1 /home/sscdlse/public_html/index.php(2): include_once('/home/sscdlse/p...') #2 {main} thrown in /home/sscdlse/public_html/swf_index.php on line 306