Hello, I have a problem with a car i have bought. I want to start it but it doesn't work. It says hybrid problem in red and doesn't start.

When it doesn't have this fault it goes to ready and i hear a sound coming from the enginebay and I can also push the accelerator and the needle goes slowly up to like 20 but then it gets the fault and it says off and hybrid system problem.

I've already replaced the convertor but no luck. Please help me. I don't know what to do? is it the BMS in the battery can i reset it???

Thanks Sebastian!!

picture of faults attached below.