Dashboard displays yellow padlock logo beside charger logo

Does anyone know what this yellow padlock logo means? I have this logo appear on my dashboard display this morning while charging on the public. And my car doesn't seem to charge. I don't have this charging issue since I bought the car and I've been charging to this same port for a few weeks now. The mobile app shows that I'm charging but my car wasn't.

I charged at home last night without any issues. I'll try to charge home after work and see how it goes.