The Error when Upload

Hi, I find this error when I upload image, the image cannot upload after it, please help, thks

Fatal error: Uncaught exception ‘ImagickException’ with message ‘The path is a directory: /home/kkofficepoint/public_html/demo2/wp-content/uploads/’ in /home/kkofficepoint/public_html/demo2/wp-content/plugins/image-watermark/image-watermark.php:836 Stack trace: #0 /home/kkofficepoint/public_html/demo2/wp-content/plugins/image-watermark/image-watermark.php(836): Imagick->__construct(‘/home/kkofficep…’) #1 /home/kkofficepoint/public_html/demo2/wp-content/plugins/image-watermark/image-watermark.php(750): Image_Watermark->do_watermark(7333, ‘/home/kkofficep…’, ‘full’, Array) #2 [internal function]: Image_Watermark->apply_watermark(Array, 7333) #3 /home/kkofficepoint/public_html/demo2/wp-includes/plugin.php(235): call_user_func_array(Array, Array) #4 /home/kkofficepoint/public_html/demo2/wp-admin/includes/image.php(209): apply_filters(‘wp_generate_att…’, Array, 7333) #5 /home/kkofficepoint/public_html/demo2/wp-admin/includes/media.php(375): wp_generate_attachment_metadata(7333, ‘/home/kkofficep…’) #6 /home/kkofficepoin in /home/kkofficepoint/public_html/demo2/wp-content/plugins/image-watermark/image-watermark.php on line 836