Use the safe navigation operator over try

app/helpers/boards_helper.rb

@@ -5,7 +5,7 @@ module BoardsHelper
     {
       endpoint: namespace_project_boards_path(@project.namespace, @project),
       board_id: board.id,
-      board_milestone_title: board.try(:milestone).try(:title),
+      board_milestone_title: board&.milestone&.title,
       disabled: "#{!can?(current_user, :admin_list, @project)}",
       issue_link_base: namespace_project_issues_path(@project.namespace, @project),
       root_path: root_path,