NEW YORK — Midge Maisel marvelously mucked things up this time. In Season 3 of “The Marvelous Mrs. Maisel,” the show’s titular comedian got her big break as the opening act for singer Shy Williams on his tour. She then threw it away by hinting to an Apollo Theater crowd that Shy is gay, getting her bounced from the European leg of the tour. Now, she is starting over. “They certainly are feeling the weight of this giant error in judgment that Midge made heading into Season 4,” star Rachel Brosnahan told the Daily News, referring to Midge and her manager Susie. “This is a moment where they feel …