how to fix my straighteners?

I have ionic v05 straighteners,
The cable starting turning round and making a crackling noise then they stopped working
I've changed the plug and fuse but still nothing
Does anyone have any suggestions? It would be much appreciated thanks,
The description:
HoMedics Group Ltd.
MODEL:ST-241-GB
220-240V~
50-60Hz 50W
MADE IN CHINA.
Details on the cable:
HO5RR-F 2X0.75 KEMA-KEUR CHAU'S