Hi just installed the actual version (Sximo 5 LTS ( v.6.0 )Updated : Dec 06, 2017  Sximo 5 LTS ( v.6.0 )) and get an error at first launch http://sximo.plirux.com/public/, can you help please

(1/1) FatalThrowableError
Class 'Illuminate\Routing\ImplicitRouteBinding' not found

in Router.php (line 646)
at Router->substituteImplicitBindings(object(Route))
in SubstituteBindings.php (line 39)
at SubstituteBindings->handle(object(Request), object(Closure))
in Pipeline.php (line 148)
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
in Pipeline.php (line 53)
at Pipeline->Illuminate\Routing\{closure}(object(Request))
in ShareErrorsFromSession.php (line 49)
at ShareErrorsFromSession->handle(object(Request), object(Closure))
in Pipeline.php (line 148)
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
in Pipeline.php (line 53)
at Pipeline->Illuminate\Routing\{closure}(object(Request))
in StartSession.php (line 64)
at StartSession->handle(object(Request), object(Closure))
in Pipeline.php (line 148)
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
in Pipeline.php (line 53)
at Pipeline->Illuminate\Routing\{closure}(object(Request))
in AddQueuedCookiesToResponse.php (line 37)
at AddQueuedCookiesToResponse->handle(object(Request), object(Closure))
in Pipeline.php (line 148)
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
in Pipeline.php (line 53)
at Pipeline->Illuminate\Routing\{closure}(object(Request))
in EncryptCookies.php (line 59)
at EncryptCookies->handle(object(Request), object(Closure))
in Pipeline.php (line 148)
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
in Pipeline.php (line 53)
at Pipeline->Illuminate\Routing\{closure}(object(Request))
in Pipeline.php (line 102)
at Pipeline->then(object(Closure))
in Router.php (line 574)
at Router->runRouteWithinStack(object(Route), object(Request))
in Router.php (line 533)
at Router->dispatchToRoute(object(Request))
in Router.php (line 511)
at Router->dispatch(object(Request))
in Kernel.php (line 176)
at Kernel->Illuminate\Foundation\Http\{closure}(object(Request))
in Pipeline.php (line 30)
at Pipeline->Illuminate\Routing\{closure}(object(Request))
in CheckForMaintenanceMode.php (line 46)
at CheckForMaintenanceMode->handle(object(Request), object(Closure))
in Pipeline.php (line 148)
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
in Pipeline.php (line 53)
at Pipeline->Illuminate\Routing\{closure}(object(Request))
in Pipeline.php (line 102)
at Pipeline->then(object(Closure))
in Kernel.php (line 151)
at Kernel->sendRequestThroughRouter(object(Request))
in Kernel.php (line 116)
at Kernel->handle(object(Request))
in index.php (line 53)