update

Admin/Installer.php

@@ -59,6 +59,9 @@ final class Installer extends InstallerAbstract
      *
      * @return array
      *
+     * @throws PathException
+     * @throws \Exception
+     *
      * @since 1.0.0
      */
     public static function installExternal(ApplicationAbstract $app, array $data) : array

Controller/BackendController.php

@@ -52,7 +52,7 @@ final class BackendController extends Controller
         $view->setTemplate('/Modules/Workflow/Theme/Backend/workflow-template-list');
         $view->data['nav'] = $this->app->moduleManager->get('Navigation')->createNavigationMid(1005501001, $request, $response);
 
-        $path      = \str_replace('+', ' ', (string) ($request->getData('path') ?? '/'));
+        $path      = \strtr($request->getDataString('path') ?? '/', '+', ' ');
         $templates = WorkflowTemplateMapper::getAll()
             ->with('createdBy')
             ->with('tags')

tests/Autoloader.php

@@ -71,14 +71,12 @@ final class Autoloader
      *
      * @return void
      *
-     * @throws AutoloadException Throws this exception if the class to autoload doesn't exist. This could also be related to a wrong namespace/file path correlation.
-     *
      * @since 1.0.0
      */
     public static function defaultAutoloader(string $class) : void
     {
         $class = \ltrim($class, '\\');
-        $class = \str_replace(['_', '\\'], '/', $class);
+        $class = \strtr($class, '_\\', '//');
 
         foreach (self::$paths as $path) {
             $file = $path . $class . '.php';