Electric lawn mower (Pakefield NR33)

This Qualcast Easi-Trak mower used to cut very well but has stopped working. I have checked the fuse and the connections and there is nothing obvious wrong but I think someone with more knowledge than me could fix it easily. I have included a photo of the inside of the connection and there are clips on YouTube on how to repair but I don't want to do it myself. Is there anyone out there who would like it?