ErrorException In Connection.php line 669 :

  SQLSTATE[HY000] [2002] Connection refused (SQL: select `back_name` from `im_configs` limit 1) (View: /www/wwwroot/im.wav.wang/resources/views/laravel-admin/pages/login.blade.php)

#0 vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php(45): Illuminate/View/Engines/CompilerEngine->handleViewException(Object(Illuminate/Database/QueryException), 1)
#1 vendor/laravel/framework/src/Illuminate/View/Engines/CompilerEngine.php(59): Illuminate/View/Engines/PhpEngine->evaluatePath('/www/wwwroot/im...', Array)
#2 vendor/laravel/framework/src/Illuminate/View/View.php(143): Illuminate/View/Engines/CompilerEngine->get('/www/wwwroot/im...', Array)
#3 vendor/laravel/framework/src/Illuminate/View/View.php(126): Illuminate/View/View->getContents()
#4 vendor/laravel/framework/src/Illuminate/View/View.php(91): Illuminate/View/View->renderContents()
#5 vendor/dcat/laravel-admin/src/Support/Helper.php(100): Illuminate/View/View->render()
#6 vendor/dcat/laravel-admin/src/Layout/Column.php(105): Dcat/Admin/Support/Helper::render(Object(Illuminate/View/View))
#7 vendor/dcat/laravel-admin/src/Layout/Row.php(74): Dcat/Admin/Layout/Column->render()
#8 vendor/dcat/laravel-admin/src/Layout/Content.php(271): Dcat/Admin/Layout/Row->render()
#9 vendor/dcat/laravel-admin/src/Layout/Content.php(516): Dcat/Admin/Layout/Content->build()
#10 vendor/laravel/framework/src/Illuminate/Http/Response.php(42): Dcat/Admin/Layout/Content->render()
#11 vendor/symfony/http-foundation/Response.php(205): Illuminate/Http/Response->setContent(Object(Dcat/Admin/Layout/Content))
#12 vendor/laravel/framework/src/Illuminate/Routing/Router.php(749): Symfony/Component/HttpFoundation/Response->__construct(Object(Dcat/Admin/Layout/Content), 200, Array)
#13 vendor/laravel/framework/src/Illuminate/Routing/Router.php(721): Illuminate/Routing/Router::toResponse(Object(Illuminate/Http/Request), Object(Dcat/Admin/Layout/Content))
#14 vendor/laravel/framework/src/Illuminate/Routing/Router.php(681): Illuminate/Routing/Router->prepareResponse(Object(Illuminate/Http/Request), Object(Dcat/Admin/Layout/Content))
#15 vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(130): Illuminate/Routing/Router->Illuminate/Routing/{closure}(Object(Illuminate/Http/Request))
#16 vendor/dcat/laravel-admin/src/Http/Middleware/WebUploader.php(22): Illuminate/Pipeline/Pipeline->Illuminate/Pipeline/{closure}(Object(Illuminate/Http/Request))
#17 vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(171): Dcat/Admin/Http/Middleware/WebUploader->handle(Object(Illuminate/Http/Request), Object(Closure))
#18 vendor/dcat/laravel-admin/src/Http/Middleware/Session.php(12): Illuminate/Pipeline/Pipeline->Illuminate/Pipeline/{closure}(Object(Illuminate/Http/Request))
#19 vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(171): Dcat/Admin/Http/Middleware/Session->handle(Object(Illuminate/Http/Request), Object(Closure))
#20 vendor/dcat/laravel-admin/src/Http/Middleware/Permission.php(39): Illuminate/Pipeline/Pipeline->Illuminate/Pipeline/{closure}(Object(Illuminate/Http/Request))
#21 vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(171): Dcat/Admin/Http/Middleware/Permission->handle(Object(Illuminate/Http/Request), Object(Closure))
#22 vendor/dcat/laravel-admin/src/Http/Middleware/Bootstrap.php(19): Illuminate/Pipeline/Pipeline->Illuminate/Pipeline/{closure}(Object(Illuminate/Http/Request))
#23 vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(171): Dcat/Admin/Http/Middleware/Bootstrap->handle(Object(Illuminate/Http/Request), Object(Closure))
#24 vendor/dcat/laravel-admin/src/Http/Middleware/Pjax.php(22): Illuminate/Pipeline/Pipeline->Illuminate/Pipeline/{closure}(Object(Illuminate/Http/Request))
#25 vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(171): Dcat/Admin/Http/Middleware/Pjax->handle(Object(Illuminate/Http/Request), Object(Closure))
#26 vendor/dcat/laravel-admin/src/Http/Middleware/Authenticate.php(26): Illuminate/Pipeline/Pipeline->Illuminate/Pipeline/{closure}(Object(Illuminate/Http/Request))
#27 vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(171): Dcat/Admin/Http/Middleware/Authenticate->handle(Object(Illuminate/Http/Request), Object(Closure))
#28 vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php(41): Illuminate/Pipeline/Pipeline->Illuminate/Pipeline/{closure}(Object(Illuminate/Http/Request))
#29 vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(171): Illuminate/Routing/Middleware/SubstituteBindings->handle(Object(Illuminate/Http/Request), Object(Closure))
#30 vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/VerifyCsrfToken.php(77): Illuminate/Pipeline/Pipeline->Illuminate/Pipeline/{closure}(Object(Illuminate/Http/Request))
#31 vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(171): Illuminate/Foundation/Http/Middleware/VerifyCsrfToken->handle(Object(Illuminate/Http/Request), Object(Closure))
#32 vendor/laravel/framework/src/Illuminate/View/Middleware/ShareErrorsFromSession.php(49): Illuminate/Pipeline/Pipeline->Illuminate/Pipeline/{closure}(Object(Illuminate/Http/Request))
#33 vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(171): Illuminate/View/Middleware/ShareErrorsFromSession->handle(Object(Illuminate/Http/Request), Object(Closure))
#34 vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(56): Illuminate/Pipeline/Pipeline->Illuminate/Pipeline/{closure}(Object(Illuminate/Http/Request))
#35 vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(171): Illuminate/Session/Middleware/StartSession->handle(Object(Illuminate/Http/Request), Object(Closure))
#36 vendor/laravel/framework/src/Illuminate/Cookie/Middleware/AddQueuedCookiesToResponse.php(37): Illuminate/Pipeline/Pipeline->Illuminate/Pipeline/{closure}(Object(Illuminate/Http/Request))
#37 vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(171): Illuminate/Cookie/Middleware/AddQueuedCookiesToResponse->handle(Object(Illuminate/Http/Request), Object(Closure))
#38 vendor/laravel/framework/src/Illuminate/Cookie/Middleware/EncryptCookies.php(67): Illuminate/Pipeline/Pipeline->Illuminate/Pipeline/{closure}(Object(Illuminate/Http/Request))
#39 vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(171): Illuminate/Cookie/Middleware/EncryptCookies->handle(Object(Illuminate/Http/Request), Object(Closure))
#40 vendor/dcat/laravel-admin/src/Http/Middleware/Application.php(15): Illuminate/Pipeline/Pipeline->Illuminate/Pipeline/{closure}(Object(Illuminate/Http/Request))
#41 vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(171): Dcat/Admin/Http/Middleware/Application->handle(Object(Illuminate/Http/Request), Object(Closure), 'admin')
#42 vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(105): Illuminate/Pipeline/Pipeline->Illuminate/Pipeline/{closure}(Object(Illuminate/Http/Request))
#43 vendor/laravel/framework/src/Illuminate/Routing/Router.php(683): Illuminate/Pipeline/Pipeline->then(Object(Closure))
#44 vendor/laravel/framework/src/Illuminate/Routing/Router.php(658): Illuminate/Routing/Router->runRouteWithinStack(Object(Illuminate/Routing/Route), Object(Illuminate/Http/Request))
#45 vendor/laravel/framework/src/Illuminate/Routing/Router.php(624): Illuminate/Routing/Router->runRoute(Object(Illuminate/Http/Request), Object(Illuminate/Routing/Route))
#46 vendor/laravel/framework/src/Illuminate/Routing/Router.php(613): Illuminate/Routing/Router->dispatchToRoute(Object(Illuminate/Http/Request))
#47 vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(170): Illuminate/Routing/Router->dispatch(Object(Illuminate/Http/Request))
#48 vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(130): Illuminate/Foundation/Http/Kernel->Illuminate/Foundation/Http/{closure}(Object(Illuminate/Http/Request))
#49 vendor/fideloper/proxy/src/TrustProxies.php(57): Illuminate/Pipeline/Pipeline->Illuminate/Pipeline/{closure}(Object(Illuminate/Http/Request))
#50 vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(171): Fideloper/Proxy/TrustProxies->handle(Object(Illuminate/Http/Request), Object(Closure))
#51 vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate/Pipeline/Pipeline->Illuminate/Pipeline/{closure}(Object(Illuminate/Http/Request))
#52 vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(171): Illuminate/Foundation/Http/Middleware/TransformsRequest->handle(Object(Illuminate/Http/Request), Object(Closure))
#53 vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate/Pipeline/Pipeline->Illuminate/Pipeline/{closure}(Object(Illuminate/Http/Request))
#54 vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(171): Illuminate/Foundation/Http/Middleware/TransformsRequest->handle(Object(Illuminate/Http/Request), Object(Closure))
#55 vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ValidatePostSize.php(27): Illuminate/Pipeline/Pipeline->Illuminate/Pipeline/{closure}(Object(Illuminate/Http/Request))
#56 vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(171): Illuminate/Foundation/Http/Middleware/ValidatePostSize->handle(Object(Illuminate/Http/Request), Object(Closure))
#57 vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/CheckForMaintenanceMode.php(63): Illuminate/Pipeline/Pipeline->Illuminate/Pipeline/{closure}(Object(Illuminate/Http/Request))
#58 vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(171): Illuminate/Foundation/Http/Middleware/CheckForMaintenanceMode->handle(Object(Illuminate/Http/Request), Object(Closure))
#59 vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(105): Illuminate/Pipeline/Pipeline->Illuminate/Pipeline/{closure}(Object(Illuminate/Http/Request))
#60 vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(145): Illuminate/Pipeline/Pipeline->then(Object(Closure))
#61 vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(110): Illuminate/Foundation/Http/Kernel->sendRequestThroughRouter(Object(Illuminate/Http/Request))
#62 public/index.php(61): Illuminate/Foundation/Http/Kernel->handle(Object(Illuminate/Http/Request))
#63 {main}