If this is not an extensive project, share it. Someone will see if it crashes their machine. Here's how...
1. Save your project. Then, with it on the timeline, click the FILE menu. SAVE PORTABLE PROJECT AS to any convenient folder.
2. Open the folder that contains the saved files and ZIP them all.
3. Upload the zip file to DropBox, Google Drive, MS OneDrive or the like. It's free.
4. Make the uploaded file public (share it) and copy the shared link.
5. Paste the link into this forum.
As for those crashes, update the video driver to the latest - from the chip or card manufacturer's WEBsite.
Close other programs when exporting. Clear Unused Cache Files, under OPTIONS|DISK tab.
In Videopad, under OPTION|EDITING tab, toggle the Use Hardware Acceleration choice. Likely will make no difference, but it won't hurt to test.
An odd occurrence; VP has never crashed here.