The My Cloud may be unresponsive while it is performing the full restore. As the pervious poster indicated, simply let the My Cloud continue with its full restore.
A full restore is performing a wipe of the user data and resetting the firmware settings to default. Interrupting that process could cause unintended issues and in remote cases could potentially brick/render unusable the My Cloud unit.
Edit to add: The My Cloud full restore runs independently from one’s local computer, meaning your local computer doesn’t affect the My Cloud full restore if that local computer is restarted or turned off.
