[TASK] Fix missing docheeader

Classes/Controller/BackendController.php

@@ -85,6 +85,7 @@ class BackendController extends ActionController {
 			$this->docHeaderComponent = GeneralUtility::makeInstance(DocHeaderComponent::class);
 			$this->docHeaderComponent->setMetaInformation($pageInfo);
 			BackendService::makeButtons($this->docHeaderComponent, $this->request);
+			$this->view->assign('docHeader', $this->docHeaderComponent->docHeaderContent());
 
 			// when we are on a siteroot page then display the normal view
 			if ($pageInfo && (int) $pageInfo['is_siteroot'] === 1) {
@@ -108,15 +109,14 @@ class BackendController extends ActionController {
 				$this->view->assign('filters', $filters);
 				$this->view->assign('pageUid', $pageUid);
 				$this->view->assign('rootPageUid', $this->rootPageUid);
-				$this->view->assign('docHeader', $this->docHeaderComponent->docHeaderContent());
 				$this->view->assign('typo3Version', VersionNumberUtility::convertVersionNumberToInteger(TYPO3_version));
-				$this->view->assign('docHeader', $this->docHeaderComponent->docHeaderContent());
 			} else {
 				$this->view->assign('pages', BackendService::getPages());
 				$this->view->assign('rootOptions', BackendService::getRootOptions());
 			}
 
 		} catch (\Exception $exception) {
+			debug($exception);
 			// check for NULL value in view and render an error message
 			$this->view->assign('docHeader', NULL);
 		}