diff --git a/Helper/Data.php b/Helper/Data.php
index df072f8..7682f54 100644
--- a/Helper/Data.php
+++ b/Helper/Data.php
@@ -41,7 +41,7 @@ public function getConfigModule(string $cfg = '', $value = null)
         if (!$cfg) {
             return $values;
         }
-        $config = explode('/', $cfg);
+        $config = explode('/', (string) $cfg);
         $end = count($config) - 1;
         foreach ($config as $key => $vl) {
             if (isset($values[$vl])) {