If all your data is synced to the cloud, please try the following:
- Make sure local data are saved (you can export local unsaved changes to OPML or plain text using the “Export” option in the item menu);
- Exit the desktop app;
- Rename the following folder “data” to “data-backup”
Windows: %APPDATA%/Dynalist/dynalist/data
Mac: ~/Library/Application Support/Dynalist/dynalist/data
Linux: ~/.config/Dynalist/dynalist/data - Restart the app.