the system does not run

[kattykay50675]

Whoops, looks like something went wrong. 1/1 ErrorException in Builder.php line 1243: compact(): Undefined variable: operator in Builder.php line 1243 at HandleExceptions->handleError(8, 'compact(): Undefined variable: operator', 'C:\xampp\htdocs\lighthouse\vendor\laravel\framework\src\Illuminate\Database\Query\Builder.php', 1243, array('query' => object(Builder), 'boolean' => 'and', 'not' => false, 'type' => 'Exists')) at compact('type', 'operator', 'query', 'boolean') in Builder.php line 1243 at Builder->addWhereExistsQuery(object(Builder), 'and', false) in Builder.php line 1332 at Builder->__call('addWhereExistsQuery', array(object(Builder), 'and', false)) in QueriesRelationships.php line 215 at Builder->addHasWhere(object(Builder), object(BelongsTo), '>=', 1, 'and') in QueriesRelationships.php line 52 at Builder->has(object(BelongsTo), '>=', 1, 'and', object(Closure)) in QueriesRelationships.php line 121 at Builder->whereHas('gallerycategory', object(Closure)) in MainController.php line 66 at MainController->index() at call_user_func_array(array(object(MainController), 'index'), array()) in Controller.php line 55 at Controller->callAction('index', array()) in ControllerDispatcher.php line 44 at ControllerDispatcher->dispatch(object(Route), object(MainController), 'index') in Route.php line 203 at Route->runController() in Route.php line 160 at Route->run() in Router.php line 559 at Router->Illuminate\Routing{closure}(object(Request)) in Pipeline.php line 30 at Pipeline->Illuminate\Routing{closure}(object(Request)) in SubstituteBindings.php line 41 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 VerifyCsrfToken.php line 65 at VerifyCsrfToken->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 561 at Router->runRouteWithinStack(object(Route), object(Request)) in Router.php line 520 at Router->dispatchToRoute(object(Request)) in Router.php line 498 at Router->dispatch(object(Request)) in Kernel.php line 174 at Kernel->Illuminate\Foundation\Http{closure}(object(Request)) in Pipeline.php line 30 at Pipeline->Illuminate\Routing{closure}(object(Request)) in TransformsRequest.php line 30 at TransformsRequest->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 TransformsRequest.php line 30 at TransformsRequest->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 ValidatePostSize.php line 27 at ValidatePostSize->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 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 149 at Kernel->sendRequestThroughRouter(object(Request)) in Kernel.php line 116 at Kernel->handle(object(Request)) in index.php line 53

[kattykay50675]

i get this error after doing all thing i was instracted to do when i run this system, please help me