Virb Edit crashes at start

Got a Virb 360, used Virb Edit a couple of times successfully. Today I connected the Virb 360 to my iMac, launched Virb Edit, Virb 360 recognized and new videos identified. Started to download the files, in the middle of the download it crashes.
Tried to restart Virb Edit, immediately crashes. Switched off-on the iMac, no luck. Re-intalled Virb Edit, no luck.

Please help, thank you.