Updater app does not start

My OC install suggested to update from 9.0.1 to 9.0.4. The button for starting the update shows no reaction.
Is this a known issue? Or is there another way to get the update?

Hi,

looks like a known issue as a lot of people reporting the same here:

I have the same problem on FF, Chrome and MS Edge

Hi,

just closing here. The issue is known, already reported to the
developers and not fixed yet by them. There is nothing what needs to be
discussed in here concerning the initial report.