The cloud file provider exited unexpectedly. A simple, straightforward way is to pause the OneDrive sync and then resume it back. Right-click on the OneDrive icon in the taskbar. In the menu that ...
LOCALAPPDATA%\Microsoft\OneDrive\ At the location, double-click the OneDriveSetup.exe file to run the installer. Once the installation completes, the related icon will be restored in the taskbar.