ErrorException: Invalid argument supplied for foreach() in file /var/www/html/portaldata/app/Exports/ExcelExport.php on line 27 #0 /var/www/html/portaldata/app/Exports/ExcelExport.php(27): Illuminate\Foundation\Bootstrap\HandleExceptions->handleError() #1 /var/www/html/portaldata/vendor/maatwebsite/excel/src/Sheet.php(186): App\Exports\ExcelExport->headings() #2 /var/www/html/portaldata/vendor/maatwebsite/excel/src/Sheet.php(209): Maatwebsite\Excel\Sheet->open() #3 /var/www/html/portaldata/vendor/maatwebsite/excel/src/Writer.php(71): Maatwebsite\Excel\Sheet->export() #4 /var/www/html/portaldata/vendor/maatwebsite/excel/src/Excel.php(195): Maatwebsite\Excel\Writer->export() #5 /var/www/html/portaldata/vendor/maatwebsite/excel/src/Excel.php(84): Maatwebsite\Excel\Excel->export() #6 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Support/Facades/Facade.php(261): Maatwebsite\Excel\Excel->download() #7 /var/www/html/portaldata/app/Helpers/Helpers.php(92): Illuminate\Support\Facades\Facade::__callStatic() #8 /var/www/html/portaldata/app/Http/Controllers/api/MicroStrategy.php(48): App\Helpers\Helpers::output_api_format() #9 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Routing/Controller.php(54): App\Http\Controllers\api\MicroStrategy->index() #10 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php(45): Illuminate\Routing\Controller->callAction() #11 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Routing/Route.php(262): Illuminate\Routing\ControllerDispatcher->dispatch() #12 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Routing/Route.php(205): Illuminate\Routing\Route->runController() #13 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Routing/Router.php(721): Illuminate\Routing\Route->run() #14 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(128): Illuminate\Routing\Router->Illuminate\Routing\{closure}() #15 /var/www/html/portaldata/app/Http/Middleware/LogVisits.php(39): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #16 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): App\Http\Middleware\LogVisits->handle() #17 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php(50): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #18 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Routing\Middleware\SubstituteBindings->handle() #19 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Routing/Middleware/ThrottleRequests.php(127): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #20 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Routing/Middleware/ThrottleRequests.php(103): Illuminate\Routing\Middleware\ThrottleRequests->handleRequest() #21 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Routing/Middleware/ThrottleRequests.php(55): Illuminate\Routing\Middleware\ThrottleRequests->handleRequestUsingNamedLimiter() #22 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Routing\Middleware\ThrottleRequests->handle() #23 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(103): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #24 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Routing/Router.php(723): Illuminate\Pipeline\Pipeline->then() #25 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Routing/Router.php(698): Illuminate\Routing\Router->runRouteWithinStack() #26 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Routing/Router.php(662): Illuminate\Routing\Router->runRoute() #27 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Routing/Router.php(651): Illuminate\Routing\Router->dispatchToRoute() #28 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(167): Illuminate\Routing\Router->dispatch() #29 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(128): Illuminate\Foundation\Http\Kernel->Illuminate\Foundation\Http\{closure}() #30 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #31 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ConvertEmptyStringsToNull.php(31): Illuminate\Foundation\Http\Middleware\TransformsRequest->handle() #32 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\ConvertEmptyStringsToNull->handle() #33 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #34 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TrimStrings.php(40): Illuminate\Foundation\Http\Middleware\TransformsRequest->handle() #35 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\TrimStrings->handle() #36 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ValidatePostSize.php(27): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #37 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\ValidatePostSize->handle() #38 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/PreventRequestsDuringMaintenance.php(86): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #39 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\PreventRequestsDuringMaintenance->handle() #40 /var/www/html/portaldata/vendor/fruitcake/laravel-cors/src/HandleCors.php(52): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #41 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Fruitcake\Cors\HandleCors->handle() #42 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Http/Middleware/TrustProxies.php(39): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #43 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Http\Middleware\TrustProxies->handle() #44 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(103): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #45 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(142): Illuminate\Pipeline\Pipeline->then() #46 /var/www/html/portaldata/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(111): Illuminate\Foundation\Http\Kernel->sendRequestThroughRouter() #47 /var/www/html/portaldata/public/index.php(52): Illuminate\Foundation\Http\Kernel->handle() #48 {main}