Skydrive No Longer In System Tray

I have Windows 8. My SkyDrive is no longer in my system tray. My SkyDrive account still exists and the SkyDrive folder on my computer still exists. I cannot uninstall SkyDrive app. When  I try to reinstall it I get this error message, "SkyDrive is still running". However, it is not in my task manager or start menu. Also, I get this message, "We couldn't find your SkyDrive folder in C:\Users\(My Computer Account Name)\SkyDrive, but it is there. When I click to reconfigure my SkyDrive folder, it doesn't fix it. I cannot sync my SkyDrive folder.