Update available after latest version

I installed version 1.x of post voting plugin from wpmuDEV. the plugin tab said there was an update available so I updated it. Seems there is a same name plug in at wordpress.org update. I then realized it was not a wpmu plugin So I deleted the plug in and reinstalled 2.x of wpmu devs post voting plug in.
I have the wpmuDEV Update plugin active
Now it keep saying
There is a new version of Post Voting available. View version 2.1 details or update automatically.
Or is there the same problem as the theme that I saw with the same problem?

When I click on more info for the update available its blank.