Error while creating image block

I'm trying to create a image block, and selected the image folder. But when I saved it, the photos do not show and the following error is displayed.

Warning: asort() expects parameter 1 to be array, null given in _ddblock_get_image_array() (line 2309 of C:\wamp\www\delhi\sites\all\modules\ddblock\ddblock.module).
Warning: asort() expects parameter 1 to be array, null given in _ddblock_get_image_array() (line 2310 of C:\wamp\www\delhi\sites\all\modules\ddblock\ddblock.module).
Warning: array_slice() expects parameter 1 to be array, null given in _ddblock_get_image_array() (line 2319 of C:\wamp\www\delhi\sites\all\modules\ddblock\ddblock.module).
Warning: array_slice() expects parameter 1 to be array, null given in _ddblock_get_image_array() (line 2320 of C:\wamp\www\delhi\sites\all\modules\ddblock\ddblock.module).
Warning: Invalid argument supplied for foreach() in include() (line 70 of C:\wamp\www\delhi\sites\all\modules\ddblock\ddblock-cycle-block-content.tpl.php).

Any help? Thank you.