307 Economy mode active error

2004 model 307. Gasoline & LPG. I started my car at 1 am, it worked smoothly in one start, I went to an upper street (I used it for about 70 seconds) and parked it. When I returned to the car after 10 minutes and pressed the starter, it did not work at all. It starts, but the Economy mode active warning is on. There is no response when I try to use the four windows of my vehicle.

-The battery of the vehicle is newer than 1 week.

-I put the battery in another vehicle and tested it. .

-I disconnected the battery terminal and plugged it in after 20-25 minutes, no difference.

-I removed the battery terminal and kept it that way for about 10 hours.

-When I hold the LPG key and start it, it cranks, but it doesn't work.

-It's been 1 week since all the coils and spark plugs have been changed.

-When I turn the ignition, there is an injection sound into the engine.

-We lifted the seat and listened to the gas pump, and it works too.

I would appreciate it if you could help me about the subject.