Hello,
I’ve installed your gallery and I find it very good, but I need some additional features to the free version, like the download button. I see that Optima skin has this feature and I remeber that is possibile to install the skin in a demo version, so before buying it I try to do this from the panel inside wordpress, selecting the install button, but it give me this error !ERROR : ‘PCLZIP_ERR_BAD_FORMAT (-10) : Unable to find End of Central Dir Record signature'” and the error is the same for all the addition skins.
Can you help me?