Error

A file the model needs could not be opened

Part of the model is missing from the models folder.

What it means

The model, or a file it depends on, is not where Draggy expects it. It may have been moved or deleted by hand, or removed by a cleanup tool or antivirus program.

What to do

• Remove the model in Settings → Models and download it again, so every file it needs is put back.
• Do not move files out of the models folder. Draggy finds them by name and by where they sit.

Still stuck

Settings → Data → Open log folder has the logs, and app.log is safe to share. Open an issue with the message you saw and that log, or read Troubleshooting.