Open this css file style.css (folder CSS)
and add this:
.fastgallery.gallery .gallery-icon img {
height:auto;
}
I advice you to regenerate thumbnails (use this free plugin "regenerate thumbnails" present in folder wordpress plugin).
Error
Fatal error: Cannot redeclare class OAuthException in /home/sites/cmbl.co.uk/public_html/wp-content/plugins/adonepage/inc/shortcodes/functions/twitteroauth.php on line 15
Solution:
there is a coflict with other plugin or theme that used my same library.
The fix is very simple.
Open shortcodes-functions.php (folder inc/shortcodes) and find e delete this
require('twitteroauth.php');