I haven't been able to click any links on its learning for weeks?

I haven't been able to do this for weeks, so I can't work on some school assignments.

Whether on a laptop or smartphone

I always get kicked out.

I'm the only one with this problem.

Even with YT Videos.

Caught virus?

Try CTRL c and CTRL v

No, it doesn't matter on which device I do it.

And that's only on its learning.

If I had a virus it wouldn't be on every device and other things wouldn't work either.

There are also network worms, where they tend to jump from, for example, a Windows device to another Windows device and not from a Windows device to an Android device.

Yes, this is an Android device and the other devices are Windows. So that can't be done.

What are networms? If I had one I would have completely different problems.

If I had a virus it would. Other things don't work and it's just its learning

It's stupid, but not the end of the world. The circumference and area of the circle (and most other topics) are also explained in the same way in your school books. There are also video-free help pages online.

https://www.studienkreis.de/mathematik/kreis-berechnungen-formeln/

You can call friends and ask if that doesn't understand. Maybe someone can download the videos for you so you can watch them offline?