I have been using VideoPad on Mac for a year and a half now. I have version 4.23. I have been able to save & export projects, & with whatever problems I had with exporting videos, I could resolve issues fairly quickly, until today. Once I click create, the video won't export & instead it has a red "Failed" message in the window. From now on, no matter what project or files I use, it won't even try to create my finished video file. I even tried to restart the program as well as the computer. I'm thinking about upgrading to a new version, but I can't pay for a new version now, & if I switch to a trial version, I'm afraid I'll lose my paid features. What could I do?