Eva,
Those informative entries in the 1-Click Publish tab are unrelated (they are telling you that you have deleted attributes in two different Entities, but the corresponding columns have not been deleted from the database - which is the expected behaviour of the platform).
As for why it is not replacing the big 1-Click Publish green button with the Open in Browser blue button... typically it happens when your module does not have an Default Entrypoint, if I'm not mistaken... On your 1-Click Publish tab, do you see a blue button labeled OPEN IN BROWSER, with a dropdown next to it? If not, you should still be able to right-click on your Web Screen (in the Elements Tree) and select the Open in Browser option there...
But i don't know why on the table, it's still show all the detail on the table.