I think change is not visible because of cache.
Follow next steps, open next file:
wp-content/themes/agama-pro/includes/agama-core.php
Search on line 22 for something like next:
static private $version = '1.3.5.20';
And change it to:
static private $version = '1.3.5.21';
After that refresh website and see if gap has been fixed.
Regards