Is 'Get macOS Mojave from the App store' working?

Hello, guys.

I'm seriously losing my self because of upgrade macOS.

I installed Yosemite more than 5times by pushing `shift+option+command+R'.

For about 24hours, I've tried to install macOS higher than Yosemite.

The problem is that I can't find any macOS application when I click the link from `Official Apple Support`.

All `Get macOS _____ from the App store` drives me to the page below.

(Log-in status, I delete my name)

What can I do at this moment?

I really appreciate your help:D