Vacuum Cleaner Over-heats and Cuts Out - Can I Fix It? - eviltoast

I’ve had this Vax upright for about 5 years. Recently it’s started to cut off when I’m using it. I feel the base - and it’s hot. Any ideas for anything that I can do to fix it?

I’m not technically minded but I will have a go - if it will save me having to buy a new vacuum.

Edit: many thanks for all the replies and advice.