I want to know if anyone else has the bug where inner deamon remains a gastly ball when summoned and only shows up to attack if not please fix the bug it's being like this since the last big patch.I tried to reinstall the game and doesn't fix the anything any ideas?

Not sure what you are experiencing or expect. Bit hard to read this out of your post. But this skill is basically a buff/guardian for your character, meaning it gives you some of its intelligence and buffs your magic armor. You can order him to guard a perimeter around you and terrify enemies, which also destroys their magic armor. But it doesn't do anything on its own.