http://localhost:3000/system crash under superadmin credential

[rizaon]

Opening http://localhost:3000/system using superadmin crash with following error messages:

Unhandled Rejection (TypeError): Cannot read properties of undefined (reading 'id')
renderContent

src/components/ContentWithSidebar/ContentWithSidebar.jsx:127
  124 |   return <RouteC key={item.id} {...props} />;
  125 | });
  126 | 
> 127 | const redirect = items[0].id !== '@' && <Redirect exact from={match.url} to={resolveUrl(match.url, items[0].id)} />;
      | ^  128 | 
  129 | return (
  130 |   <div>

p.ContentWithSidebar [as constructor]
src/components/ContentWithSidebar/ContentWithSidebar.jsx:157
  154 | return (
  155 |   <ContentAndSidebar
  156 |     sidebarElement={renderSidebar()}
> 157 |     contentElement={renderContent()}
      | ^  158 |     stickyWidget={renderStickyWidget()}
  159 |     smallContent={smallContent}
  160 |   />

[fushar]

This System tab is moving soon from judgels-client to judgels-server (admin UI).

Won't fix this, but keeping this open until we move it to admin UI.