diff --git a/public/api/services/dbOperations.inc.php b/public/api/services/dbOperations.inc.php
index 70d9e27..fa93f79 100644
--- a/public/api/services/dbOperations.inc.php
+++ b/public/api/services/dbOperations.inc.php
@@ -7,6 +7,7 @@ class DbOperations
     {
         $this->resetQuery();
         $this->tablePrefix = $tablePrefix;
+        $this->customValueId = 0;
 
         require(__DIR__ . "/../config/config.php");
         $this->config = $config;