Verify Web interface For Google DriveThere even may be some sort of verification issue due to which drive file stream not working at your end in that case you need to make sure all your files are in your Google Drive or not.
Use Google Drive Migrator toolthat will help you to migrate your Google drive data to another Google drive and hence you would not loss any piece of data. Your old drive folder, full of files should be taken a backup from your computer so that you important piece of data may not get loss.
Uninstall Drive SyncYou need to uninstall the Drive Sync client this will stop the syncing processes that are being used previously.
If you have problem in installing File syncing for Google drive then read this article how to install Google Drive File streaming. This would be very useful to resolve Google Drive sync issues.
A user need to install the latest version of Google Drive file streaming.
Try to Upgrade File Streaming ServiceGoogle Drive file streaming not working properly is because you might be using older version of file streaming.