Sorry guys, version 1.4 is totally trash. Kindly get the new release version 1.5. This will fix the big syntax error within downfile.php. I set anti leech time with 900 seconds. Unfortunately, I’m not yet create administration task to set this value. If you want set your own time, change the value within downfile.php: line 15 manually.
Anti leech time is time period available after shortcode started loading. After the period end, the download url will be expired.