Uncaught TYPO3 Exception
[] operator not supported for strings

Error thrown in file
/html/typo3/typo3_src-7.6.15/typo3/sysext/frontend/Classes/ContentObject/Menu/AbstractMenuContentObject.php in line 355.

20 TYPO3\CMS\Frontend\ContentObject\Menu\AbstractMenuContentObject::start(TYPO3\CMS\Core\TypoScript\TemplateService, TYPO3\CMS\Frontend\Page\PageRepository, "", array, 1)

/html/typo3/typo3_src-7.6.15/typo3/sysext/frontend/Classes/ContentObject/HierarchicalMenuContentObject.php:
00046:             $GLOBALS['TSFE']->applicationData['GMENU_LAYERS']['WMparentId'] = [];
00047:             $menu->parent_cObj = $this->cObj;
00048:             $menu->start($GLOBALS['TSFE']->tmpl, $GLOBALS['TSFE']->sys_page, '', $conf, 1);
00049:             $menu->makeMenu();
00050:             $theValue .= $menu->writeMenu();

19 TYPO3\CMS\Frontend\ContentObject\HierarchicalMenuContentObject::render(array)

/html/typo3/typo3_src-7.6.15/typo3/sysext/frontend/Classes/ContentObject/ContentObjectRenderer.php:
00941:         // Render content
00942:         try {
00943:             $content .= $contentObject->render($configuration);
00944:         } catch (ContentRenderingException $exception) {
00945:             // Content rendering Exceptions indicate a critical problem which should not be

18 TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer::render(TYPO3\CMS\Frontend\ContentObject\HierarchicalMenuContentObject, array)

/html/typo3/typo3_src-7.6.15/typo3/sysext/frontend/Classes/ContentObject/ContentObjectRenderer.php:
00857:                     $contentObject = $this->getContentObject($name);
00858:                     if ($contentObject) {
00859:                         $content .= $this->render($contentObject, $conf);
00860:                     } else {
00861:                         // Call hook functions for extra processing

17 TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer::cObjGetSingle("HMENU", array)

/html/typo3/typo3_src-7.6.15/typo3/sysext/fluid/Classes/ViewHelpers/CObjectViewHelper.php:
00117:             $setup = $setup[$segment . '.'];
00118:         }
00119:         $content = $contentObject->cObjGetSingle($setup[$lastSegment], $setup[$lastSegment . '.']);
00120:         if (TYPO3_MODE === 'BE') {
00121:             $this->resetFrontendEnvironment();

16 TYPO3\CMS\Fluid\ViewHelpers\CObjectViewHelper::render("lib.header_menu", NULL, NULL, "")
15 call_user_func_array(array, array)

/html/typo3/typo3_src-7.6.15/typo3/sysext/fluid/Classes/Core/ViewHelper/AbstractViewHelper.php:
00266: 
00267:         try {
00268:             return call_user_func_array([$this, 'render'], $renderMethodParameters);
00269:         } catch (Exception $exception) {
00270:             if (GeneralUtility::getApplicationContext()->isProduction()) {

14 TYPO3\CMS\Fluid\Core\ViewHelper\AbstractViewHelper::callRenderMethod()

/html/typo3/typo3_src-7.6.15/typo3/sysext/fluid/Classes/Core/ViewHelper/AbstractViewHelper.php:
00247:         $this->initialize();
00248: 
00249:         return $this->callRenderMethod();
00250:     }
00251: 

13 TYPO3\CMS\Fluid\Core\ViewHelper\AbstractViewHelper::initializeArgumentsAndRender()

/html/typo3/typo3temp/Cache/Code/fluid_template/Standalone_layout_main_layout_e5e689f3d466c978fa57e0888e30046459e219af.php:
00097: // End of ViewHelper TYPO3\CMS\Fluid\ViewHelpers\CObjectViewHelper
00098: 
00099: $output0 .= $viewHelper8->initializeArgumentsAndRender();
00100: 
00101: $output0 .= '

12 FluidCache_Standalone_layout_main_layout_e5e689f3d466c978fa57e0888e30046459e219af::render(TYPO3\CMS\Fluid\Core\Rendering\RenderingContext)

/html/typo3/typo3_src-7.6.15/typo3/sysext/fluid/Classes/View/AbstractTemplateView.php:
00187:             }
00188:             $this->startRendering(self::RENDERING_LAYOUT, $parsedTemplate, $this->baseRenderingContext);
00189:             $output = $parsedLayout->render($this->baseRenderingContext);
00190:             $this->stopRendering();
00191:         } else {

11 TYPO3\CMS\Fluid\View\AbstractTemplateView::render()

/html/typo3/typo3_src-7.6.15/typo3/sysext/frontend/Classes/ContentObject/FluidTemplateContentObject.php:
00298:     protected function renderFluidView()
00299:     {
00300:         return $this->view->render();
00301:     }
00302: 

10 TYPO3\CMS\Frontend\ContentObject\FluidTemplateContentObject::renderFluidView()

/html/typo3/typo3_src-7.6.15/typo3/sysext/frontend/Classes/ContentObject/FluidTemplateContentObject.php:
00100:         $this->view->assignMultiple($variables);
00101: 
00102:         $content = $this->renderFluidView();
00103:         $content = $this->applyStandardWrapToRenderedContent($content, $conf);
00104: 

9 TYPO3\CMS\Frontend\ContentObject\FluidTemplateContentObject::render(array)

/html/typo3/typo3_src-7.6.15/typo3/sysext/frontend/Classes/ContentObject/ContentObjectRenderer.php:
00941:         // Render content
00942:         try {
00943:             $content .= $contentObject->render($configuration);
00944:         } catch (ContentRenderingException $exception) {
00945:             // Content rendering Exceptions indicate a critical problem which should not be

8 TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer::render(TYPO3\CMS\Frontend\ContentObject\FluidTemplateContentObject, array)

/html/typo3/typo3_src-7.6.15/typo3/sysext/frontend/Classes/ContentObject/ContentObjectRenderer.php:
00857:                     $contentObject = $this->getContentObject($name);
00858:                     if ($contentObject) {
00859:                         $content .= $this->render($contentObject, $conf);
00860:                     } else {
00861:                         // Call hook functions for extra processing

7 TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer::cObjGetSingle("FLUIDTEMPLATE", array, "10")

/html/typo3/typo3_src-7.6.15/typo3/sysext/frontend/Classes/ContentObject/ContentObjectRenderer.php:
00803:             if ((int)$theKey && strpos($theKey, '.') === false) {
00804:                 $conf = $setup[$theKey . '.'];
00805:                 $content .= $this->cObjGetSingle($theValue, $conf, $addKey . $theKey);
00806:             }
00807:         }

6 TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer::cObjGet(array)

/html/typo3/typo3_src-7.6.15/typo3/sysext/frontend/Classes/Page/PageGenerator.php:
00208:         $timeTracker->incStackPointer();
00209:         $timeTracker->push($tsfe->sPre, 'PAGE');
00210:         $pageContent = $tsfe->cObj->cObjGet($tsfe->pSetup);
00211:         if ($tsfe->pSetup['wrap']) {
00212:             $pageContent = $tsfe->cObj->wrap($pageContent, $tsfe->pSetup['wrap']);

5 TYPO3\CMS\Frontend\Page\PageGenerator::renderContent()

/html/typo3/typo3_src-7.6.15/typo3/sysext/frontend/Classes/Http/RequestHandler.php:
00214:                 // Content generation
00215:                 if (!$this->controller->isINTincScript()) {
00216:                     PageGenerator::renderContent();
00217:                     $this->controller->setAbsRefPrefix();
00218:                 }

4 TYPO3\CMS\Frontend\Http\RequestHandler::handleRequest(TYPO3\CMS\Core\Http\ServerRequest)

/html/typo3/typo3_src-7.6.15/typo3/sysext/core/Classes/Core/Bootstrap.php:
00300: 
00301:         // Execute the command which returns a Response object or NULL
00302:         $this->response = $requestHandler->handleRequest($request);
00303:         return $this;
00304:     }

3 TYPO3\CMS\Core\Core\Bootstrap::handleRequest(TYPO3\CMS\Core\Http\ServerRequest)

/html/typo3/typo3_src-7.6.15/typo3/sysext/frontend/Classes/Http/Application.php:
00076:     public function run(callable $execute = null)
00077:     {
00078:         $this->bootstrap->handleRequest(\TYPO3\CMS\Core\Http\ServerRequestFactory::fromGlobals());
00079: 
00080:         if ($execute !== null) {

2 TYPO3\CMS\Frontend\Http\Application::run()

/html/typo3/typo3_src-7.6.15/index.php:
00031: call_user_func(function () {
00032:     $classLoader = require rtrim(realpath(__DIR__ . '/typo3'), '\\/') . '/../vendor/autoload.php';
00033:     (new \TYPO3\CMS\Frontend\Http\Application($classLoader))->run();
00034: });

1 {closure}()

/html/typo3/typo3_src-7.6.15/index.php:
00032:     $classLoader = require rtrim(realpath(__DIR__ . '/typo3'), '\\/') . '/../vendor/autoload.php';
00033:     (new \TYPO3\CMS\Frontend\Http\Application($classLoader))->run();
00034: });