This is quite a funny situation but also frustrating. When I first used Socrates, that was on a 7day trial. The plugin worked fine then. Soon the 7day trial was over, i made payment for the required fee, i think it was $47. Since then every installation that i did I got the WordPress Error,"The plugin does not have a valid header". I kept deleting what i did and reinstalled same thing.
Please help! Thanks!