Cannot access accounted after sign in

I cannot access my account after in successfully singed in on It doesn’t work in iOS, nor safari or chrome under Macos. I just get a bouncing Z in different colours but nothing happens.

What is wrong?

Some people yesterday mentioned they got stuck in a redirect loop

Try or

I have had the same problem since yesterday and this morning still the same problem, just a bouncing Z of different colors, but nothing is happening. !!! ???