diff --git a/script.js b/script.js
index 2a04b3c..c335e1e 100644
--- a/script.js
+++ b/script.js
@@ -474,7 +474,7 @@ const ruleProviders = {
 // generate configuration using the above settings
 
 function validateOriginalConfig(config) {
-    const proxyCount = Array.isArray(config.proxies)
+    const proxyCount = Array.isArray(config?.proxies)
         ? config?.proxies?.length
         : 0;
     const proxyProviderCount =