"No longer syncing with your Dropbox"

I keep getting a popup message:

When I hover over the Dropbox icon in my system tray, I see:

and clicking on the Boxifier icon, I see:

Any idea how to fix this? I have just one folder being synced and the latest versions of Dropbox and Boxifier.

Hi there,

From the screenshot it looks like you are using the Boxifier free edition. The free edition can sync folders up to 2GB.

If you need to sync folders that are larger than 2GB then you can upgrade to a premium edition of Boxiifer.