Emergency 206 misfire

Hello everyone, my car runs smoothly when lpg is running, but when I get it on gasoline, it stops and then stops. I bought and continued, as I explained at first, and now the malfunction lamp does not light up, there is no fear of kicking it, but it is not afraid of doing it again. Why do you think it may have been caused? I received 97 octane gasoline from the shelter.

Did you keep the fuel around half a tank? As you know in our vehicles, the indicator is constantly falling and it is damaging the gas pump under the quarter tank. The 2nd option could be the clearing of the injectors, I couldn't get my master to do it and disassembled it and sent it to another place.