The "Unhandled error (execa)" is a symptom, not a singular disease. The following are the primary etiologies of this failure:
Resolving the "Unhandled error (execa)" requires a process of elimination. open video downloader error unhandled error execa top
Open Video Downloader relies heavily on yt-dlp . If the app hasn't been updated recently by its developers, its internal version of yt-dlp becomes obsolete. You can manually replace it with the latest version. The "Unhandled error (execa)" is a symptom, not
YouTube and other sites frequently change their code. If the version of yt-dlp bundled with Open Video Downloader is even a few weeks old, it will crash with "unhandled" errors. open video downloader error unhandled error execa top
To confirm the issue is indeed with execa and not with yt-dlp itself, you can try running the same command that the GUI would execute.