[BUGFIX] Catch exception when “new” icon is missing

Temporary measure is to use a text `[+]` link. The button still has a label so it should be clear what it does.

Classes/View/PreviewView.php

@@ -25,6 +25,7 @@
 use TYPO3\CMS\Backend\Utility\BackendUtility;
 use TYPO3\CMS\Core\Authentication\BackendUserAuthentication;
 use TYPO3\CMS\Core\Database\DatabaseConnection;
+use TYPO3\CMS\Core\Exception;
 use TYPO3\CMS\Core\Imaging\Icon;
 use TYPO3\CMS\Core\Imaging\IconFactory;
 use TYPO3\CMS\Core\Type\Bitmask\Permission;
@@ -454,7 +455,11 @@ protected function drawNewIcon(array $row, Column $column, $after = 0)
         $columnName = $column->getName();
         $after = (false === empty($columnName) && false === empty($after)) ? '-' . $after : $row['pid'];
         $iconFactory = GeneralUtility::makeInstance(IconFactory::class);
-        $icon = $iconFactory->getIcon('actions-document-new', Icon::SIZE_SMALL)->render();
+        try {
+            $icon = $iconFactory->getIcon('actions-document-new', Icon::SIZE_SMALL)->render();
+        } catch (Exception $exception) {
+            $icon = '[+]';
+        }
         $uri = $this->getNewLink($row, $after, $columnName);
         $title = $this->getLanguageService()->getLL('newRecordHere');
         $inner = $this->getLanguageService()->getLL('content');