Liquid error: Solution::ArticleMeta#visible? delegated to solution_folder_meta.visible?, but solution_folder_meta is nil: #<Solution::ArticleMeta id: 44002289552, position: 1, art_type: 1, thumbs_up: 11, thumbs_down: 14, hits: 500, solution_folder_meta_id: 44001233996, account_id: 1107830, created_at: "2021-12-07 12:29:13", updated_at: "2023-02-27 12:46:44", available: "2147483680", draft_present: "32", published: "2147483680", outdated: "0">