One of my client request to reslove this error.
He was facing this error since he had changed his password.
Run 'Command Prompt' as an administrator
Turn off BitLocker on the target drive.
Use this command.
C:\WINDOWS\system32> manage-bde.exe -off C:
C:\WINDOWS\system32> manage-bde.exe -status
C:\WINDOWS\system32> manage-bde.exe -status
Click 'Sync' button under the company account which was controlly by intune.
Once you click 'Sync' button, check the disk encryption status.
The encryption is starting by the intune policy.