diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index dd62b80..9729428 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -38,7 +38,7 @@ jobs:
           warning_severity: 6
 
   editorconfig:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       - uses: editorconfig-checker/action-editorconfig-checker@main
diff --git a/Classes/Command/ProcessQueueCommand.php b/Classes/Command/ProcessQueueCommand.php
index 28c9d6f..a1b8d24 100644
--- a/Classes/Command/ProcessQueueCommand.php
+++ b/Classes/Command/ProcessQueueCommand.php
@@ -73,10 +73,8 @@ protected function execute(InputInterface $input, OutputInterface $output): int
                     if (!empty($row['identifier']) || ($safeProcessing === false)) {
                         $processedFile = $processedFileRepository->findByUid($row['uid']);
 
-                        if (is_a($processedFile, ProcessedFile::class)) {
-                            $templateRunner->setProcessedFile($processedFile);
-                            $templateRunner->run();
-                        }
+                        $templateRunner->setProcessedFile($processedFile);
+                        $templateRunner->run();
                     }
                 }
                 $queryBuilder
diff --git a/Classes/Templates/AvifTemplate.php b/Classes/Templates/AvifTemplate.php
index 8f88b31..226972f 100644
--- a/Classes/Templates/AvifTemplate.php
+++ b/Classes/Templates/AvifTemplate.php
@@ -113,11 +113,11 @@ protected function convertImageUsingGd(string $quality, string $targetFile): boo
             /** @var Typo3Version $version */
             $version = GeneralUtility::makeInstance(Typo3Version::class);
             if ($version->getMajorVersion() == 13) {
-                $graphicalFunctionsObject = GeneralUtility::makeInstance(GifBuilder::class);// @phpstan-ignore-line
+                $graphicalFunctionsObject = GeneralUtility::makeInstance(GifBuilder::class);
             } else {
                 $graphicalFunctionsObject = GeneralUtility::makeInstance(GraphicalFunctions::class);
             }
-            $image = $graphicalFunctionsObject->imageCreateFromFile($this->imagePath);// @phpstan-ignore-line
+            $image = $graphicalFunctionsObject->imageCreateFromFile($this->imagePath);
             // Convert CMYK to RGB
             if (!imageistruecolor($image)) {
                 imagepalettetotruecolor($image);
diff --git a/Classes/Templates/WebpTemplate.php b/Classes/Templates/WebpTemplate.php
index f9924e3..4848492 100644
--- a/Classes/Templates/WebpTemplate.php
+++ b/Classes/Templates/WebpTemplate.php
@@ -95,11 +95,20 @@ public function processFile(): void
     protected function convertImageUsingIm(string $options, string $targetFile): string
     {
         $graphicalFunctionsObject = GeneralUtility::makeInstance(GraphicalFunctions::class);
-        return $graphicalFunctionsObject->imageMagickExec(
+        $execResponse = $graphicalFunctionsObject->imageMagickExec(
             $this->imagePath,
             $targetFile,
             $options
         );
+
+        // imageMagickExec might return false. phpdoc of function imageMagickExec is wrong
+        // @phpstan-ignore identical.alwaysFalse
+        if ($execResponse === false) {
+            $this->logger->writeLog('convert error on ' . $targetFile, LogLevel::ERROR);
+            return '';
+        }
+
+        return $execResponse;
     }
 
     /**
@@ -112,11 +121,11 @@ protected function convertImageUsingGd(string $quality, string $targetFile): boo
         if (function_exists('imagewebp') && defined('IMG_WEBP') && (imagetypes() & IMG_WEBP) === IMG_WEBP) {
             $version = GeneralUtility::makeInstance(Typo3Version::class);
             if ($version->getMajorVersion() == 13) {
-                $graphicalFunctionsObject = GeneralUtility::makeInstance(GifBuilder::class);// @phpstan-ignore-line
+                $graphicalFunctionsObject = GeneralUtility::makeInstance(GifBuilder::class);
             } else {
                 $graphicalFunctionsObject = GeneralUtility::makeInstance(GraphicalFunctions::class);
             }
-            $image = $graphicalFunctionsObject->imageCreateFromFile($this->imagePath);// @phpstan-ignore-line
+            $image = $graphicalFunctionsObject->imageCreateFromFile($this->imagePath);
             // Convert CMYK to RGB
             if (!imageistruecolor($image)) {
                 imagepalettetotruecolor($image);
diff --git a/composer.json b/composer.json
index e733c5f..55397aa 100644
--- a/composer.json
+++ b/composer.json
@@ -31,8 +31,9 @@
 		"issues": "https://github.com/sitegeist/image-jack/issues"
 	},
 	"require": {
-		"php": ">=8.1.0",
-		"typo3/cms-core": "^12.4 || ^13.2"
+		"php": ">=8.2.0",
+		"typo3/cms-core": "^12.4 || ^13.4",
+		"typo3/cms-frontend": "^12.4 || ^13.4"
 	},
 	"require-dev": {
 		"editorconfig-checker/editorconfig-checker": "*",
diff --git a/ext_localconf.php b/ext_localconf.php
index f75570d..bfcb650 100755
--- a/ext_localconf.php
+++ b/ext_localconf.php
@@ -6,7 +6,6 @@
 use Sitegeist\ImageJack\Templates\JpegTemplate;
 use Sitegeist\ImageJack\Templates\PngTemplate;
 use Sitegeist\ImageJack\Templates\WebpTemplate;
-use Sitegeist\ImageJack\Xclass\AmazonS3Driver;
 use Sitegeist\ImageJack\Xclass\LocalDriver;
 use TYPO3\CMS\Core\Information\Typo3Version;
 use TYPO3\CMS\Core\Log\Writer\FileWriter;
@@ -52,7 +51,7 @@
 
         if (isset($GLOBALS['TYPO3_CONF_VARS']['SYS']['fal']['registeredDrivers']['AusDriverAmazonS3'])) {
             $GLOBALS['TYPO3_CONF_VARS']['SYS']['Objects'][$GLOBALS['TYPO3_CONF_VARS']['SYS']['fal']['registeredDrivers']['AusDriverAmazonS3']['class']] = [
-                'className' => AmazonS3Driver::class
+                'className' => 'Sitegeist\ImageJack\Xclass\AmazonS3Driver'
             ];
         }