There has been cases where vacuum cleaners from the produced Shark started to burn and has caused severe damage. They pose a shock hazard.
"The aluminum wand can disconnect from the vacuum cleaner’s handle and
remain energized with electricity, posing a risk of electric shock."
So all these vacuums are recalled - as you can read on this site - if you have any of these please return them ASAP.
Now, they have also been recalled in US and Canada. Much later than elsewhere?
Which you can read about on this site. Where you also find exactly what models etc.
Stop using them now! Return them, for your own safety.
And keep them away from your children.