Uncaught TYPO3 Exception
[] operator not supported for strings

Error thrown in file
/home/ic4all/public_html/typo3/sysext/frontend/Classes/ContentObject/Menu/AbstractMenuContentObject.php in line 310.

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

/home/ic4all/public_html/typo3/sysext/frontend/Classes/ContentObject/HierarchicalMenuContentObject.php:
00045:    $GLOBALS['TSFE']->applicationData['GMENU_LAYERS']['WMparentId'] = array();
00046:    $menu->parent_cObj = $this->cObj;
00047:    $menu->start($GLOBALS['TSFE']->tmpl, $GLOBALS['TSFE']->sys_page, '', $conf, 1);
00048:    $menu->makeMenu();
00049:    $theValue .= $menu->writeMenu();

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

/home/ic4all/public_html/typo3/sysext/frontend/Classes/ContentObject/ContentObjectRenderer.php:
00750:      $contentObject = $this->getContentObject($name);
00751:      if ($contentObject) {
00752:       $content .= $contentObject->render($conf);
00753:      } else {
00754:       // Call hook functions for extra processing

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

/home/ic4all/public_html/typo3/sysext/frontend/Classes/ContentObject/FluidTemplateContentObject.php:
00223:     $this->view->assign(
00224:      $variableName,
00225:      $this->cObj->cObjGetSingle($cObjType, $variables[$variableName . '.'])
00226:     );
00227:    } else {

6 TYPO3\CMS\Frontend\ContentObject\FluidTemplateContentObject::assignContentObjectVariables(array)

/home/ic4all/public_html/typo3/sysext/frontend/Classes/ContentObject/FluidTemplateContentObject.php:
00073:   $this->setExtbaseVariables($conf);
00074:   $this->assignSettings($conf);
00075:   $this->assignContentObjectVariables($conf);
00076:   $this->assignContentObjectDataAndCurrent($conf);
00077: 

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

/home/ic4all/public_html/typo3/sysext/frontend/Classes/ContentObject/ContentObjectRenderer.php:
00750:      $contentObject = $this->getContentObject($name);
00751:      if ($contentObject) {
00752:       $content .= $contentObject->render($conf);
00753:      } else {
00754:       // Call hook functions for extra processing

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

/home/ic4all/public_html/typo3/sysext/frontend/Classes/ContentObject/ContentObjectRenderer.php:
00695:     if ((int)$theKey && strpos($theKey, '.') === FALSE) {
00696:      $conf = $setup[$theKey . '.'];
00697:      $content .= $this->cObjGetSingle($theValue, $conf, $addKey . $theKey);
00698:     }
00699:    }

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

/home/ic4all/public_html/typo3/sysext/frontend/Classes/Page/PageGenerator.php:
00213:   $GLOBALS['TT']->incStackPointer();
00214:   $GLOBALS['TT']->push($GLOBALS['TSFE']->sPre, 'PAGE');
00215:   $pageContent = $GLOBALS['TSFE']->cObj->cObjGet($GLOBALS['TSFE']->pSetup);
00216:   if ($GLOBALS['TSFE']->pSetup['wrap']) {
00217:    $pageContent = $GLOBALS['TSFE']->cObj->wrap($pageContent, $GLOBALS['TSFE']->pSetup['wrap']);

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

/home/ic4all/public_html/typo3/sysext/cms/tslib/index_ts.php:
00210:   // Content generation
00211:   if (!$TSFE->isINTincScript()) {
00212:    \TYPO3\CMS\Frontend\Page\PageGenerator::renderContent();
00213:    $TSFE->setAbsRefPrefix();
00214:   }

1 require("/home/ic4all/public_html/typo3/sysext/cms/tslib/index_ts.php")

/home/ic4all/public_html/index.php:
00026:  ->redirectToInstallerIfEssentialConfigurationDoesNotExist();
00027: 
00028: require(PATH_tslib . 'index_ts.php');