isn't a valid image

<br /><br />&nbsp;&nbsp;FILE: /homepages/1/d318583438/htdocs/2015/public/imgresize.php
<br />&nbsp;&nbsp;LINE: 7

<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;FILE: /homepages/1/d318583438/htdocs/2015/cm-system/class/imageTransform/imageTransform.php
<br />&nbsp;&nbsp;&nbsp;&nbsp;LINE: 236

<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;FILE: /homepages/1/d318583438/htdocs/2015/cm-system/class/imageResizeController.class.php
<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;LINE: 39
<br />