My Seat Leon MK3.5 2018 won't start - Help

[HarisY]

My Seat Leon won't start after tapping into the incorrect cable into the passenger side and drivers side door for power. https://onedrive.live.com/?id=3D51F...VFUEE&migratedtospo=true&v=validatepermission

The link I have provided above shows images and a video to how I wired it. I also have copy and pasted all the error codes on my OBD reader. One thing I realised is when I reset the error

U0155 (Pending) - Lost Communication With Instrument Panel Cluster (IPC) Control Module then I can start the car for one second but the cockpit still does not light up or show anything and the second it starts, it turns off again. Could this be a relay that has shorted or the BCM. What do you think?

The car will no longer start, it starts for a second then turns off after resetting that code. I am not getting any response from the instrument cluster at all. At first before the car would start I was getting headlight errors, parking brake error, I assumed it was just a fuse and would be fine and I would undo the LED power, then after 10 minutes it just stopped working and the car wouldn't start. If anyone has any idea what this could be, please help. I replaced all the fuses inside the car, the engine bay fuses were fine. I am not sure if it could be the relays potentially. The headlights work now and indicators at first they won't. I just can't get power to the cluster. If anyone has any idea, please help.

Thanks

Basic OBD2:
U0155 (Pending) - Lost Communication With Instrument Panel Cluster (IPC) Control Module

CAN network gateway:
131593 - Multi-function module: no communication at the second bus connection
131604 - Lost Communication With: Instrument Panel Cluster (IPC) Control Module
131654 - Lost Communication With HVAC Control Module
131658 - Lost Communication With "Door Control Module A"
131659 - Lost Communication With “Door Control Module B”
131753 - Multi-function module: no communication
66052 - Vehicle Communication Bus E: Performance
8520138 - Battery Monitoring Control Module: faulty
8526361 - NV-Energy management: Alarm triggered

Engine:
13816 - Lost Communication With: Instrument Panel Cluster (IPC) Control Module
17158 - Databus error value received
21127 - Databus missing message
04715 - Lost Communication With: Instrument Panel Cluster (IPC) Control Module
05523 - Engine Control Module (ECM) locked
07150 - Invalid Data Received From Steering Angle Sensor Module

ABS:
00128 - Function restriction: Function restriction due to low voltage
16411 - Tire Pressure Monitoring System (TPMS): Signal malfunction
00297 - Steering angle sensor: no initialization
32836 - Button lamp for electrical parking brake: Short circuit to B+
32837 - Button lamp for electrical parking brake: Open circuit
04214 - -AUTO HOLD- Button: Range/Performance
08232 - Databus missing message
08234 - Databus missing message
08236 - Databus missing message
08268 - Databus missing message
08356 - Databus implausible message

Power steering:
16275 - Steering angle sensor: no initialization
22016 - Databus missing message
24064 - Databus missing message

Airbags:
1048581 - Databus error value received
1051136 - Databus missing message
1051904 - Databus missing message
1054976 - Databus missing message
15360256 - Component protection active

Infotainment system:
15360256 - Component protection active
06706 - Databus missing message
06714 - Databus missing message
07183 - Function restriction due to missing message
07185 - Function restriction due to missing message
07186 - Function restriction due to missing message
07187 - Function restriction due to missing message

Heater & air conditioning:
262914 - Refrigerant pressure: lower limit not reached
459011 - Databus missing message
459523 - Databus error value received

Parking/steering assist:
12670210 - Databus missing message
12670240 - Databus missing message
13636864 - Databus error value received
13637426 - Databus error value received

Central electronics:
1049604 - Bulb 1 for door contour lighting, front left: no communication
1049860 - Bulb 2 for door contour lighting, front left: no communication
1050628 - Bulb 1 for door contour lighting, front right: no communication
1050632 - Bulb 1 for door contour lighting, front right: implausible message
1050884 - Bulb 2 for door contour lighting, front right: no communication
132363 - Voltage supply, left terminal 30: Open circuit
132619 - Voltage supply, right terminal 30: Open circuit
133131 - Voltage supply for terminal 30 P(ower): Open circuit
133387 - Voltage supply, terminal 30 for central locking: Open circuit
203016 - Release button in rear lid handle: Range/Performance
263442 - Sirens / alarm horn for anti-theft warning system: No release by immobilizer
264452 - Anti-theft alarm system sensor: no communication
266754 - Sirens / alarm horn for anti-theft warning system: Voltage supply lower limit not reached
395273 - Activation for horn: Open circuit/short circuit to Ground (GND)
460041 - Heated rear window activation: Open circuit/short circuit to Ground (GND)
00522 - Footwell lighting: Open circuit/short circuit to B+
527884 - Local data bus 5: electrical error
00531 - Footwell lighting: electrical error
539157 - Databus missing message
539925 - Databus missing message
540693 - Databus missing message
541204 - Databus error value received
549141 - Databus missing message
549652 - Databus error value received
549909 - Databus missing message
550420 - Databus error value received
552213 - Databus missing message
558869 - Databus missing message
559637 - Databus missing message
567062 - Databus error value received
568836 - Databus missing message
919560 - Light switch: Range/Performance
939524 - Humidity sensor: no communication
940292 - Sunlight photo sensor: no communication

Driver's door:
458794 - Databus missing message
65588 - Window regulator motor: no basic setting

Front passenger's door:
458794 - Databus missing message

Adaptive cruise control:
01080 - Databus missing message
01227 - Databus missing message
02055 - Databus implausible message
02101 - Databus error value received
00791 - Adaptive cruise control sensor: misadjusted

Multifunctional module:
13705477 - Databus missing message