Will not start?

Hey everyone,

The vehicle listed above is P12. I'm having an issue with my car and would appreciate any advice. When I turn the key, I can hear the starter motor spinning, but it suddenly cuts off, and the engine doesn't start. Immediately after that, I hear the sound of the central locking engaging.

If I keep the key in the "start" position without releasing it, the key in car warning light shows up on the instrument cluster. I've attached a video to give more details on the problem.

I'd be really grateful for any suggestions or insights into what might be causing this. Thanks in advance!

(See description, video attached)