Protein powder is this okay?

my dad has some protein supplements that he desnt use since he doesnt work out anymore and he has somethng called jak3d its supposed to provide energy before working out and keep you focused. the thing is it is sort of old couple months old and the power is hard as if he just threw water in the container i dont know if it is originally supposed to be like that but i was wondering if i can still use it althought the powder is all ticky do to water