Let's break down what might have happened.
Direct short: If somehow the main power (220V) got mixed up with the EV charging wires (PP/CP), it would likely cause serious damage to my car's electronics. This is a pretty unlikely scenario, and the charging station itself would probably be damaged too.
Voltage surge: If there was a sudden spike in the main power (maybe over 280V), it could also harm my car's electronics. This would probably be the power company's responsibility.
Car-side issue: It's more likely that the problem started within my car. Maybe a lightning strike caused a voltage surge that weakened the car's charger.
Old breaker: Sometimes old circuit breakers can fail.
To prevent these kinds of issues:
Install a Surge Protector (SPD): This device in your electrical panel can help protect your car and other electronics from voltage surges.
Finding the exact cause of the problem might be tricky. But it's probably not something wrong with the building's wiring.
I hope this helps!