diff --git a/app/Http/Controllers/JavascriptController.php b/app/Http/Controllers/JavascriptController.php
index 58f68882f5..c73a82ddc6 100644
--- a/app/Http/Controllers/JavascriptController.php
+++ b/app/Http/Controllers/JavascriptController.php
@@ -54,7 +54,7 @@ class JavascriptController extends Controller
         );
         $preference = app('preferences')->get('currencyPreference', config('firefly.default_currency', 'EUR'));
         /** @noinspection NullPointerExceptionInspection */
-        $default = $currencyRepository->findByCodeNull($preference->data);
+        $default = $currencyRepository->findByCodeNull((string) $preference->data);
 
         $data = ['accounts' => []];
 
diff --git a/app/Support/Http/Controllers/GetConfigurationData.php b/app/Support/Http/Controllers/GetConfigurationData.php
index 59ba461f4e..ae21096ea5 100644
--- a/app/Support/Http/Controllers/GetConfigurationData.php
+++ b/app/Support/Http/Controllers/GetConfigurationData.php
@@ -90,7 +90,7 @@ trait GetConfigurationData
      */
     protected function getDateRangeConfig(): array // get configuration + get preferences.
     {
-        $viewRange = app('preferences')->get('viewRange', '1M')->data;
+        $viewRange = (string) app('preferences')->get('viewRange', '1M')->data;
         /** @var Carbon $start */
         $start = session('start');
         /** @var Carbon $end */