motor for Ferrex lawnmower (Stanley PH1)

This might be a long shot but I am looking for a motor for a Ferrex Cordless lawnmower (FS-ARM 4040) that used to be sold by Lidl. See photo.

My lawnmower has stopped working and a friend reckons it needs a new motor.

Anyone out there with a similar lawnmower that might no longer be working or useable for another reason than a failed motor?

Thank you for reading, Francoise