We have recently had some importing photo issues with the new update for Safari and its connection with Adobe Flash, which is what our editing program is run with. There are two things you can try, one is to go into your settings and change them to allow Safari and Adobe access to your computer. Here is a link about changing those settings: https://helpx.adobe.com/flash-player/kb/removing-sandbox-restrictions-your-safari.html
The second thing you can try is using a different internet browser to see if that works for you. You can try Chrome or Firefox.