I would suggest doing a basic reinstall. If that doesn't work then I would try a full reinstall. If there is a break in the programs processes, then a reinstall should reset them.
Basic reinstall - uninstall (delete app from Applications), reboot, reinstall
Full reinstall -uninstall (delete app from Applications), then in Finder go to the top menu and then access Go > (holding one of shift/alt/control/command) Library > Application Support > Jaksta Media Recorder and delete that folder (NOTE: doing this will erase your library file list in Jaksta, but your downloaded/converted files will remain intact). Reboot the Mac and then do a reinstall of the latest version (https://www.jaksta.com/download/mac/jaksta-media-recorder) and it will regenerate a new copy of the deleted folder and the application files.
Let me know if the problem continues.
From Liam @ 12 Jan 2018 10:01