Multiple primary key defined Fgallery

[Multiple primary key defined]
ALTER TABLE wpfim_cat ADD PRIMARY KEY ( id )

can any one tells me what thats me, ANd what shell i do to get it a way.
It´s the fgalley plugin!

And i have some problem whit upload image, it dont work. Some ide whats wrong!

I hope that someone can help me out ther!
/Apel