BuddyPress.org

I have installed it and it seems to be ok with everything except the fact that on my header appears the following text>

When I am on the Home page (main URL) the error is > Component = Null Action = Null

It changes as I open other pages…
When I go to Members page > Component = members Action = Null
When I go to Groups page > Component = groups Action = Null
And after opening a Group page > Component = groups Action = home

Can someone tell me what is this and how to correct?
Thanks a lot!
Teo