Here what I done :

emerge planeshift
planeshift-update -auto
planeshift-setup
planeshift

And here is what I got :
you are not running the correct version of planeshift for this server

In the top of the main window the version is still : 3.0.010... (I ran planeshift-update -auto but it doesn\'t take a lot of time (1 min)) unlike when I did it with the user...

Please, help me :-) !