I can't see the 2016 peugeot 308 oil gauge

Happy holidays everyone, I changed the oil last week, I wanted to look at the oil of the vehicle, the oil is very low in the car, it is almost absent, but it did not give any warning. I think the oil remained though, because it was leaking. Can you help me with this

The oil has not decreased enough to give a warning, sir. When did you check the oil? It cannot be looked at while the vehicle is running or after 2 hours without being on flat ground.