Belt Tensioner Igniter???

[AudriuZ]

Hey folks, so I've run into a problem that I can't figure out how to fix so I thought I would ask some professionals about this.

Here's a photo of a fault code that I got: https://postimg.cc/JGxvVTZ9

I have read somewhere else that an airbag connector (small yellow one with two wires) may stop working for some reason and they cut it and just connect the wires directly. I tried looking for that connector but no luck.

Where do I start and how should I fix this problem?

Thanks alot for any advice.