Fatal error: Uncaught TypeError: array_shift(): Argument #1 ($array) must be of type array, null given in /home/itwerx/public_html/vendor/fileeye/pel/examples/rename.php:54 Stack trace: #0 /home/itwerx/public_html/vendor/fileeye/pel/examples/rename.php(54): array_shift(NULL) #1 {main} thrown in /home/itwerx/public_html/vendor/fileeye/pel/examples/rename.php on line 54