added optional chain for n=menu

src/components/Layout/Sidebar.jsx

@@ -25,9 +25,7 @@ const Sidebar = () => {
             />
           </span> */}
 
-          <small
-            className="app-brand-link fw-bold navbar-brand text-green fs-6"
-          >
+          <small className="app-brand-link fw-bold navbar-brand text-green fs-6">
             <span className="app-brand-logo demo">
               <img src="/img/brand/marco.png" width="50" />
             </span>
@@ -37,8 +35,7 @@ const Sidebar = () => {
           </small>
         </Link>
 
-       <small className="layout-menu-toggle menu-link text-large ms-auto">
-
+        <small className="layout-menu-toggle menu-link text-large ms-auto">
           <i className="bx bx-chevron-left bx-sm d-flex align-items-center justify-content-center"></i>
         </small>
       </div>
@@ -61,7 +58,7 @@ const Sidebar = () => {
           </>
         )}
         {data &&
-          data?.data.map((section) => (
+          data?.data?.map((section) => (
             <React.Fragment
               key={section.id || section.header || section.items[0]?.id}
             >