You do not have a link list with a handle set to mens-shoes , or you do and it's empty.
Go ahead and create a link list called Men's Shoes on your Navigation page and populate that link list with links that point to collections, to see collections listed here.
Make sure the link list also has a handle set to mens-shoes .
{"server_url": "https://www.opinew.com", "shop": {"id": 6722, "name": "Pink and Caboodle"}, "review_publishing": "email", "buttons_color": "#dae1e7", "stars_color": "#FB5775BF", "theme_transparent_color": "initial", "widget_theme_style": "card", "navbar_color": "#000000", "reviews_card_border_color": "#911C06D9", "reviews_card_border_active": true, "star_bars_width": "300px", "star_bars_width_auto": true, "questions_and_answers_active": true, "number_review_columns": 2, "number_reviews_per_page": 8, "preferred_language": "en", "background_color": "#ffffff00", "text_color": "#3C0802FF", "secondary_text_color": "#021220FF", "navbar_text_color": "#ffffff", "pagination_color": null, "verified_badge_color": "#38c172", "widget_show_dates": true, "display_stars_if_no_reviews": false, "fonts": {"navbar_reviews_title_font_size": "1.25rem", "navbar_buttons_font_size": "1.125rem", "star_summary_overall_score_font_size": "2.25rem", "star_summary_reviewsnum_font_size": "1.5rem", "star_summary_progress_bars_font_size": "1.125rem", "image_gallery_title_font_size": "1.875rem", "reviews_card_main_font_size": "1rem", "reviews_card_secondary_font_size": "1rem", "form_headings_font_size": "0.875rem", "form_post_font_size": "2.25rem", "form_input_font_size": "1.125rem", "paginator_font_size": "1.125rem", "qna_title_font_size": "1.5rem", "badge_average_score": "2rem", "badge_primary": "1.25rem", "badge_secondary": "1rem", "carousel_primary": "1rem", "carousel_secondary": "1rem"}, "badge_stars_color": "#ffc617", "badge_border_color": "#dae1e7", "badge_background_color": "#ffffff", "badge_text_color": "#3C3C3C", "badge_secondary_text_color": "#606f7b", "carousel_theme_style": "card", "carousel_stars_color": "#FFC617", "carousel_border_color": "#c5c5c5", "carousel_background_color": "#ffffff00", "carousel_controls_color": "#5a5a5a", "carousel_verified_badge_color": "#38c172", "carousel_text_color": "#3d4852", "carousel_secondary_text_color": "#606f7b", "carousel_widget_show_dates": true, "carousel_border_active": false, "carousel_featured_reviews": []}