3BG Door Problems: Handle and Lock Cylinder

Related to the topic:

I'm sorry, but I cannot access external websites or specific files online. Therefore, I am unable to translate the text from the provided URL.

After removing the porous sealing strip from the aggregate carrier or baking sheet on the passenger side and applying/kneading VW sealant, I can no longer fit the lock cylinder housing into the door handle.
I need to thread a cable through the door handle (similar to a bicycle brake cable with a cylindrical end), which is connected to a lock that is mounted on the generator support.
After that, the cylinder housing should be inserted from the outside and secured with a locking ring. The locking ring is rotated with a screw so that it slides under the protrusions of the cylinder housing and secures it in place. The screw is accessed from the direction of the lock and its mounting screws.
"Somehow, nothing is working. Even in the ideal scenario (the rope isn't attached to the door handle, the generator carrier is far away, and I'm looking into the door from the inside, trying to figure out how it should work)."
Does anyone else experience this problem, and can you offer any advice?
I'm feeling really down. There's been a marital argument, we have visitors coming tomorrow, it's raining and dark, and right now I can only see the option of throwing everything into boxes, securing the door, replacing the missing window with a plastic bag, and getting rid of everything as soon as possible...
haithamina

Door lock 3B, rear (?)