Try to return true json 4

Source/API/script/index.php

@@ -44,8 +44,7 @@ $app->get('/', function (Request $request, Response $response) {
             if (method_exists($gateway, $method)) {
                 $ok = true;
                 $rep = ((new $gateway)->$method($parameters));
-                #$response->getBody()->write(json_encode($rep, JSON_UNESCAPED_UNICODE));
+                $response->getBody()->write(json_encode($rep, JSON_UNESCAPED_UNICODE));
-                $response->getBody()->write(json_encode(var_export($rep,true)));
             }
         }catch (PDOException $e){
             throw new PDOError($request,$e->getMessage(),$e);