2.6.11 Update

[Adnillien]

I agree that your outlet does not appear to be an industrial outlet or one made for EVs, If you are comfortable turning the circuit breaker off and removing the outer cover plate and pasting a picture, we can tell pretty quickly. If this is a inexpensive Leviton outlet that is only meant for intermittent use, it could easily start over heating. Your mobile cable is sensing that heat and shutting off to allow it to cool down.

 

[DeaneG]

It's definitely not n EV-rated receptacle, which has a visibly larger outside diameter. I'd have an electrician swap it for an EV-rated receptacle for safety, even if you weren't already having charging problems. Using this existing receptacle could result in a fire.