Leepho – Gallery 404 error

Hi There,

I have had a site running successfully with your theme for a few months now, and have been very happy with it. But today I went into the site and all links to galleries (portfolio) are returning 404 errors. It was all working perfectly last week when a new portfolio was created and there have not been any new plugins added in the interim. Do you have any idea what the issue may be?

Thank you!