Every once in a while, I have this happen, and there is no rhyme or reason. I flip the breaker for a minute, and it's back to normal.I have been using ChargePoint charger as well. Occasionally, you will see a RED light on the charger for unknow reason. The only way to get around is turn off the breaker and turning it back on.
You would see the solid RED on right side of the charger as shown below
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