add check for empty webhook key

Model/Carrier/BobGo.php

@@ -1066,6 +1066,11 @@ class BobGo extends AbstractCarrierOnline implements \Magento\Shipping\Model\Car
             \Magento\Store\Model\ScopeInterface::SCOPE_STORE
         );
 
+        // Check if the webhook key is empty and return false
+        if (empty($webhookKey)) {
+            return false;
+        }
+
         // Convert the string to a boolean value
         $isEnabled = $this->isWebhookEnabled();
 

Observer/OrderWebhookBase.php

@@ -52,6 +52,11 @@ abstract class OrderWebhookBase implements ObserverInterface
 
         // Generate the signature using the webhook key saved in config
         $webhookKey = $this->scopeConfig->getValue('carriers/bobgo/webhook_key', \Magento\Store\Model\ScopeInterface::SCOPE_STORE);
+        // Check if the webhook key is empty and return false
+        if (empty($webhookKey)) {
+            return;
+        }
+
         // Send the webhook
         $this->bobGo->encodeWebhookAndPostRequest($url, $data, $storeId, $webhookKey);
     }