diff --git a/src/include/class-wc-retailcrm-base.php b/src/include/class-wc-retailcrm-base.php
index 42b1ff6..1c59f8a 100644
--- a/src/include/class-wc-retailcrm-base.php
+++ b/src/include/class-wc-retailcrm-base.php
@@ -40,6 +40,7 @@ if (!class_exists('WC_Retailcrm_Base')) {
                 $this->apiClient = $this->getApiClient();
             } else {
                 $this->apiClient = $retailcrm;
+                $this->init_settings_fields();
             }
 
             self::$option_key = $this->get_option_key();