to resolve the issue i have added:
public function logout(Request $request)
{
$this->guard()->logout();
//custom code
Auth::guard('admin')->logout();
Auth::guard('writer')->logout();
$request->session()->flush();
$request->session()->regenerate();
//custom code end
$request->session()->invalidate();
return $this->loggedOut($request) ?: redirect('/');
}
in Illuminate\Foundation\Auth\AuthenticatesUsers.php