Slack app cannot be installed anymore

I used to have the Slack app installed on my /e/ phone - like 1 year ago.

At some point, an update breaks it - the app icon disappeared from the phone.

So I uninstalled the app from the store.

Since then, it is impossible to install Slack app again.

When I click on “install”, the download icon appears and disappears right away and nothing happens.

No error message.

It just does not work.

Do you know how to debug this situation? Thanks!