How to check three Auth in Laravel?

I create 3 auth in laravel 5.2,

Admin -> admin,

Site -> couple, vendor.

And use this code for find Auth in site:

@if(Auth::guard('vendor')->check())
         <li><a href="">Vendor profile</a></li>
     @endif
     @if(Auth::guard('couple')->check())
         <li><a href="">couple profile</a></li>
     @endif
     @if(Auth::guard('couple')->check() != true && Auth::guard('vendor')->check() != true )
         <li><a href="">Register</a></li>
         <li><a href="">Login</a></li>
     @else
         <li><a href="">Exit</a></li>
@endif

But this code is error !

How to check vendor Auth and couple Auth in my project?

via Chebli Mohamed