Briggs and Stratton Lawn tractor does not start

Hello, I have a problem. The turf tractor doesn’t start any more. It went on for a while that he jumped with luck but now nothing moves anymore. There is no spark. I thought it was on the ignition lock, I changed that but it still doesn’t start. Then I dealt with the electrics a little bit and found three components, see photo in the appendix, where I don’t know what that is at all. The one part makes a funny fieping or beeping. I don’t know if it has to be that way at all. I can’t even imagine it. I would be very grateful for any advice, etc. In the appendix there is also a video that I sent to a friend that shows the sounds when the ignition is switched on. Furthermore, the beep stops as soon as I press the clutch (what I have to do before I can start the tractor) I hope you can help me. MfG