diff --git a/api/common/Service/FileHandler.php b/api/common/Service/FileHandler.php
index 5d06b1b..7041ed2 100644
--- a/api/common/Service/FileHandler.php
+++ b/api/common/Service/FileHandler.php
@@ -60,6 +60,9 @@ class FileHandler {
         $output = [];
         foreach ($this->folders as $f) {
             $folder = implode(DIRECTORY_SEPARATOR, [$this->base_folder, $f]);
+            if (!file_exists($folder)) {
+                continue;
+            }
             $files = new \DirectoryIterator($folder);
             foreach ($files as $file) {
                 if ($file->isDir()) {