If you see the error message "Device is Suspended", it means that the computer or mobile device you're using has been disabled (suspended) from accessing your Sync account. When a device is suspended, syncing and file access from that device are temporarily blocked to help protect your account and data.
How to fix this:
If you still own and trust the device, you can re-enable it at any time. To restore access, follow the steps outlined in How do I re-enable (unsuspend) a computer, phone or tablet? Once re-enabled, the device will resume normal syncing and regain access to your files.
If you're using the desktop application, and the app version is no longer supported, see Updating from an unsupported version of the Sync desktop app.