E46 warning lights what could that mean?

Hello, I was on the highway today and these lights came on. Suddenly, I had difficulty pressing the accelerator and couldn't get above 2,000 rpm. The speedometer for the fuel consumption went way up, though. And it wasn't pulling at all. It felt like I only had 50 hp instead of 150.

Now I briefly turned it off and on again, and everything worked normally. However, I'm worried about what it could be and wanted to ask if anyone else has had this problem and might know something about it. Thanks in advance 🙂

I have an e46 320td m47