I have the same problem
[19-Dec-2016 00:53:08 ] PHP Warning: scandir(/home/........../public_html/........../themes/........../cache/ie9): failed to open dir: No such file or directory in /home/........../public_html/........../classes/Media.php on line 628
[19-Dec-2016 00:53:08 ] PHP Warning: scandir(): (errno 2): No such file or directory in /home/........../public_html/........../classes/Media.php on line 628
[19-Dec-2016 00:53:08 ] PHP Warning: Invalid argument supplied for foreach() in /home/........../public_html/........../classes/Media.php on line 629