Mac App Store: Downloads just don't start (Mojave) I want to download apps in the Mac App Store and the apps won't start to download. As you can see in the pictures below, the spinner starts spinning but nothing gets downloaded, the download simply doesn't start. I am logged in with my account. I tried logging out of the App Store and logging in again, restarting the Mac etc, nothing helped.

This is a relatively fresh installation of Mojave 10.14. Before with High Sierra 10.13 everything worked fine. It's a Late 2013 MacBook Pro 13". Installations are allowed from App Store and identified developers. 

Some screenshots from Console output below.
I believe there can be multiple reasons for this behavior and various solutions. Too bad that app store simply does not give any indication of what is wrong with it.
The problem happened to me too. Nothing from this topic helped me, including restarting the App Store, logging in and out of the App Store, doing the above after opening a new connection with a VPN, much closer to California (I'm in Europe).
The only thing that worked is going to Activity Monitor and force-killing appstoreagent process. The app started to download at once. After force-killing appstoreagent, there was no need to log out and log in again in the App Store. Updates and downloads just work again.