uploads//images/Abschlussgalerie/shutterstock_32812705_800x600.jpg isn't a valid image

  FILE: /home/httpd/docs/hotltwmn/public/imgresize.php
  LINE: 7

    FILE: /home/httpd/docs/hotltwmn/cm-system/class/imageTransform/imageTransform.php
    LINE: 236

      FILE: /home/httpd/docs/hotltwmn/cm-system/class/imageResizeController.class.php
      LINE: 39