Golf 4 1.9 90km 2000 - errors 17946 17849 19561 18027 17957 plus esp light

Hello. I'm new so please be understanding;]
As in the topic, I have been struggling with this problem for 2 days ... not that I do not want to look for it because I have been browsing the net quite a bit and nothing about Golf and these problems.
Namely, I was returning from work in the evening, I drove through the speed bump and suddenly the ESP light came on and after a while the car went out, ignition switch reset, the car came on, the light did not appear and everything was ok. it turns on and the car does not want to start, if it lights up after a while, it will go out anyway, no reaction to the ESP switch. As far as I know, this is an emergency mode, I think;] ... I have a Polish VAG (it only has it temporarily), tomorrow I will have a full VCDS.
The following errors popped up:

ABS:
-1314 -no communication with the controller?
Engine:
-17946 - fuel cut-off valve - break short circuit to ground - sporadic error
-17849 - exhaust gas recirculation valve side 1 - break short to ground - sporadic error
-19561 - unknown error code (as far as I know it is a flap valve in the manifold?) - sporadic error
-18027 - glow plug relay - break short to ground - intermittent error
-17957 - boost pressure control valve - break short circuit to ground - sporadic error

The fuses are checked, the ones on the left side of the board are ok, the relays tick on the test of outputs and ignition (109 is new). The only thing that connects them all is the driver and the power supply. Errors cannot be deleted. Is it really the driver? Maybe someone had a similar case or an idea what else can be checked?
I had no ideas, I am asking for help.
Best regards.

First, I would check the engine harness, but I once had a similar case in my 4 sdi Golf, it threw out similar errors and the engine driver turned out to be guilty,

You have entered the "vehicle electromechanics" specialization and here you have the basics.
Where do these descriptions of errors come from - e.g. 1314 - you ask if this is the description or what because I do not know what the question mark is for?
What driver can ABS lack communication with - probably only with EDC.
It is not the fault of the engine driver. You have errors with descriptions "break or short circuit to ground", i.e. the valves have lost power on the plus side - no plus appears on them and this plus is common to them.
There are two things that connect these valves and not one - the engine controller and the plus after the relay. The fact that the relay is ticking does not mean that it is operational, but if it was out of order, the matter would be completely different.
Do not wait for anyone, just make a light bulb control, connect one end to ground and the other one of the plugs of these valves - on all these plugs there will be one wire of the same color - probably yellow and black - here you plug in the other wire of this indicator. Someone turns the starter and you look if the bulb lights up. If not, give a plus and the car should start.
When it lights up after giving the plus, you follow this cable to the N109 relay - probably under the hood, this cable is broken on the longitudinal member or on the gearbox.
The flow meter is also powered from this cable and you do not mention it here, so it has its own power supply, i.e. the power comes from the relay and it comes to the flow meter and it is closest to the relay, i.e. there is no power supply behind it, which would indicate looking for a break on the cable between the stringer and the block engine.

Thanks a lot for the hints;]
I am getting down to work, I am going to get the lumber and I will put the bundle that I go to these valves above the box next to the chassis member.

The most important thing now is to measure the extinguishing valve (the one that protrudes from the pump). If the voltage is too low, it is something with the power supply of the unit, or it is damaged. How good is it possibly some loose contacts, or finally a bundle, but I can't imagine it with these symptoms. Unless you screwed up something, that's a different conversation entirely. Try to say what you see as flawlessly as possible, avoid accidental short circuits and do what you need to do, because as you described it, the engine driver has just been burnt. Observe the errors with the help of VAG if they have the correct form.