weird error message in the on-board computer

Hi, yesterday morning I start the car, drive about 300m, the elk switches to gas, still stops at a junction and when switching from 1 to the second gear, I had a speed of va. 2500 rpm comes following error message in BC “slowly drive or turn up” In addition, the engine symbol in the right indicator lit up. Has anyone ever had this before? Does this perhaps hang together with my stubborn throttle valve (see here or even with the gas system? In any case, I then turned off the engine, waited 10s and started again. (Bill Gates sends greetings) Anyway, I did not have the error again until now. After various defects on the elk (gear expansion wg. resinated fat, lock exchange, bar flaps, roof sky and parking disc holder vibrating, brake assistent defect, defective front axle bearing, oil carbon deposits throttle) I doubt so slowly on the elk quality… Ciao, Eric