Problem one: your planet has a fucking retarded mass, which presents problems of orbit and likelyhood of formation, not to mention magnetic shenanigans or what have you. Your people are way too tall to live on a planet with 3x gravity - there is no way things would evolve that height, there is no reason, as it would become ridiculously inefficient on a 3x gravity planet. I am not even going to start on the bug telepathy, because you fucking know that is retarded and you fucking know why