[-] BO : image regeneration now gives a better reporting and crash less #PSCFV-5519

classes/ImageManager.php

@@ -119,7 +119,7 @@ class ImageManagerCore
 	 */
 	public static function resize($src_file, $dst_file, $dst_width = null, $dst_height = null, $file_type = 'jpg', $force_type = false)
 	{
-		if (!file_exists($src_file))
+		if (!file_exists($src_file) || !filesize($src_file))
 			return false;
 		list($src_width, $src_height, $type) = getimagesize($src_file);