Admin Search all activity not working

Hi

when I click on "View all Activity" in the WPMU dashboard

'I get the following mesage the past 2 days

Hi, my name is Vaughan and I'm a WPMU DEV support hero. Unfortunately, we've been unable to find what you were looking for. Don't worry though you can search for whatever you want or perhaps one of these links will help.

Also I cannot reply or award support team as I get the advertisement instead of reply box

Please advise

Thanks

Glenn