fix: length of undefined on users warnings

src/components/Layout/UserWarnings/index.tsx

@@ -17,14 +17,13 @@ interface UserWarningsProps {
 const UserWarnings: React.FC<UserWarningsProps> = ({ onClick }) => {
   const intl = useIntl();
   const { user } = useUser();
-  if (!user) {
+  //check if a user has warnings
+  if (!user || !user.warnings || user.warnings.length === 0) {
     return null;
   }
 
   let res = null;
 
-  //check if a user has warnings
-  if (user.warnings.length > 0) {
   user.warnings.forEach((warning) => {
     let link = '';
     let warningText = '';
@@ -57,7 +56,6 @@ const UserWarnings: React.FC<UserWarningsProps> = ({ onClick }) => {
       </Link>
     );
   });
-  }
 
   return res;
 };