Laptop does not start up, 1 of 2 fans do not work - what to do?

When I turn on my laptop, the screen stays black, but the keyboard light is on and one of the two fans starts up. This fan accelerates at full speed after about 30 seconds. The other remains unmoved.

The laptop remains in this state.

I have already tried to clean the allegedly defective fan with the vacuum cleaner.

Can anyone help me further?

MSI GS60-2QEUi716SR21
Win 10
Fan: PAAD06015SL

It can theoretically have different solutions. What is relatively likely is that Windows will not boot. Which of course doesn't have to be the cause. Enter on YouTube: "Windows won't boot". Maybe you will find your solution there.

Have a look at a repair service they can take a look at and find out more because you can see a lot optically

Can you not send photos on request?

You could do it, but you would have to disassemble the PC to watch something and a "professional" should do it. But if you want to look like that first, please upload a photo of your fan in the question. Maybe I or someone else recognize something