App Store won't connect on Mojave

Hi everyone,

So I have a MacBook Pro (Retina, 13-inch, Late 2013), and I've just installed Mojave 10.14. Everything seems to be working fine, softwares, updates, etc. But for some reasons the Appstore won't connect. It doesn't even show options so I can disconnect my account or anything, it just shows "Appstore won't connect". I tried all the troubleshooting available online so far and nothing works. And I have no firewall blocking the Appstore.

Any thoughts ?

Thanks heaps