Hello,
the issue with testimonials is probably happening because one of the third party plugin.
Try to deactivate every third party plugin one by one and see if the testimonials will work.
And about share buttons:
you can try to add something like this in custom.js file:
$('.social_link').click(function(e) {
e.preventDefault();
window.open($(this).attr('href'), 'fbShareWindow', 'height=450, width=550, top=' + ($(window).height() / 2 - 275) + ', left=' + ($(window).width() / 2 - 225) + ', toolbar=0, location=0, menubar=0, directories=0, scrollbars=0');
return false;
});
just keep in mind that this is not tested.
Regards