Grill/Panini Maker, For Spares? (CT2)

I've had this for years (Silvercrest/Lidl branded).
The other day, after having not used it for ages, I plugged it in to grill some stuff (indoors BBQ 😀) and it kept tripping the main breaker, despite warming up, having status lights lit and no obvious problems.
Perhaps a simple repair for someone knowledgeable, or a source of parts?
It is a bit grubby in places, but was still working fine until the last time I tried to use it.