[Plugin: Custom Field Template] bug when deleting a type=file in a fieldset

Hello,
I’ve discovered a very annoying bug while trying to delete a file (in my case an image) fro a fieldset.

my CFT code
[cft_group_fieldset]
type = fieldset_open
multiple = true
multipleButton = true
mediaRemove = true

[cft_group_photo]
label = select a photo
type = file
hideKey = true
mediaButton = true
mediaLibrary = true
relation=true

[cft_group_alt]
type= text
label= alt text
hideKey = true

[cft_group_fieldset]
type = fieldset_close

in functions.php and in single.php I used the code proposed here:

if( !function_exists('get_cft_repeating_data') ){
	function get_cft_repeating_data( $like_item ){
		global $post, $wpdb;

		$sql = "SELECT * FROM $wpdb->postmeta	WHERE post_id = $post->ID AND meta_key LIKE '%" . $like_item . "%' ORDER BY meta_id ASC";

		$data_objects = $wpdb->get_results($sql);
		$project = array();
		$i = 0;
		$fieldset = $like_item . '_fieldset';
		foreach($data_objects as $data) {

			// the name of the fieldset:

			if ( $data->meta_key == $fieldset ) {
				$limit = $data->meta_value - 1;
			}

			$i = ( $i <= $limit ) ? $i : 0;

			if( $data->meta_key != $fieldset && $data->meta_value !='' ) {
				$project[$i]["$data->meta_key"] = $data->meta_value;
			}
			$i++;
		}

		if(!$limit && is_user_logged_in() )
			echo 'Could not establish Custom Field Limit. The $like_item set was ' .$like_item . '<br /> SQL query was ' . $sql;

		return $project;
	}
}

Everything works well till the moment I try to delete an image previously uploded.
As I refresh/reload my post the img is still there, and I have an error message in my site page (frontend).
Could not establish Custom Field Limit. The $like_item set was cft_group
SQL query was SELECT * FROM lmyrph0_postmeta WHERE post_id = 101 AND meta_key LIKE ‘%cft_group%’ ORDER BY meta_id ASC

In addition Media picker is buggy and doesn’t work ??

Any suggestions please?