I can't edit my portfolio gallery

Hi IshYoBoy,

I’m really happy with the Minicorp template but I have a problem with the portfolio gallery on the back-office of my website. I’ve set all my portfolio items and I’d like to add new pictures on one of them. I use the shortcode [portfolio_gallery slideshow="yes" animation="fade" navigation="yes" autoslide="yes" interval="6"]. The thing is when I click on “add images” in the portfolio-gallery section, the popup window doesn’t show up. It brings me back on the top of the current page. So I can’t add or delate pictures in the gallery. I checked the other portfolio items, same problem. How can I fix this?
Thank tou for your help.