You need to contact the author of the jquery plugin you purchased.
I’ve not used this plugin before but you have some js errors in the page, fix those. From a quick peek it appears you are trying to load 4 galleries but only the first has an html element with the id “portoflio”. The other 3 your trying to load, their html elements aren’t present in the page.Hint: might try adding the 3 missing divs in the page with the id’s your referencing i.e.
<div id="portfolio_wavy"></div> <div id="portfolio_small"></div> <div id="portfolio_nocat"></div>Worth a shot, best I can do. Contact the author