lean mass gain critique on my diet

[russia dog]

6 meals combine;
cals 2915
protein 486.8,
carbs 150's,
fat 17

chicken breast 250 gram x 6
egg white 7 oz x 6
750 gram of sweet potato.

is my carb too low?
i have been told that "Too low a carbohydrate intake can cause your body to catabolize lean muscle for it's energy needs"
however; i am having 486.8 in synergy; will this amount of carb cause my body to catabolize lean muscle with 486.8 protein intakes??

[MuscleScience]

Low carb will not cause the muscles to be catabolized if you have high amounts of protein and sufficient overall caloric intake, the protein will be used as a energy source.

[russia dog]

thanks brother