Hi! I understand your Drime app sync isn't working on your Mac running OS X 10.15.7. Let’s get this sorted out together.

To start, could you share a bit more detail? For example:
- Is the app giving any error messages when you try to sync?
- Is it stuck trying to sync, or does it fail immediately?
- Have you noticed if the issue happens with certain files or all files?

While you check on that, here are some initial steps tailored to your Mac:

1. Check Internet Connection: Make sure your Mac is properly connected to the internet and the connection is stable.

2. Restart Drime App: Quit the Drime app completely, then relaunch it.

3. Sign Out and Back In: Try signing out of your Drime account in the app, then sign back in. Sometimes this refreshes the sync token.

4. Clear App Cache:
- Open Finder.
- Press Cmd+Shift+G to open “Go to Folder.”
- Enter ~/Library/Caches/Drime and press Enter.
- Delete the contents of this folder.
- Relaunch the app and try syncing again.

5. Update the Drime App: Check if there’s an update available for Drime and install it. Updates often fix sync issues.

If none of these work, there could be a more specific problem with your account or server-side, which may require contacting Drime support at [email protected] for a further look or beta-version fixes reported by some users1.

Could you let me know what you find after these steps or provide more details about the issue? That way, I can offer the next best solution.