php - Warning: Illegal string offset 'image' -

i using skitter slideshow plugin wordpress, in admin panel of plugin @ media library tab shows following warning:

warning: illegal string offset 'image' in c:\wamp\www\wp-content\plugins\wp-skitter-slideshow\wp-skitter-slideshow.php on line 762 , 826  

this problem appears when trying load new images in in admin panel of plugin ...

line 762 code

foreach($attachments $i => $attachment) {      $id = $attachment->id;      $style = (is_array($options_attachments['image']) && in_array($id, $options_attachments['image'])) ? ' style="opacity:0.3;"' : ''; 

line 826 code

foreach($attachments $i => $attachment)  {      $id = $attachment->id;      if (is_array($options_attachments['image']) && in_array($id, $options_attachments['image'])) continue; 

any suggestions appreciated