The youtube channel 'State of Charge' has a number of videos talking about cheap connectors and/or lower spec connectors catching fire. Happens even on setups where people had a dedicated level 2 ev charger outlet (NEMA 14-50 , aka dryer outlet) but the installer used a connector not rated for enough current. See https://youtu.be/fzgxKChqjtc to start.

One needs to do one or possibly a combination of:

- Set the pin setting on a home charger for a lower current output. Theres also portable chargers with programmable current limiting, which I find more flexible.

- Replace with a better outlet/wiring setup. Many advocate for a hardwired setup over using an outlet.