VEMS ECU V3.9 Audi AAN problem with power supply

[beham]

Good day

I have problems with my new Vems ECU V3.9 Audi AAN P & P

If the vehicle has been longer and the engine is cold, the fuel pump relay is always switched on only after the second time Ignition ON, then always (but only if you turn the key quickly)

If the car has been driven and the engine is warm, the pump relay sometimes no longer on, (often 50 times not)

Power supply and pump relays are OK

Can someone help me of you ??
Thank you!