Fix (2dust#9274)

Author: DHR60

v2rayN/ServiceLib/Handler/ConfigHandler.cs

@@ -1847,7 +1847,19 @@ public static async Task<int> AddBatchServers(Config config, string strData, str
         }
 
         //May be standard uri mixed with internal uri
-        var innerUriCount = await AddBatchServers4InnerUri(config, strData, subid, isSub);
+        var innerUriCount = 0;
+        if (Utils.IsBase64String(strData))
+        {
+            innerUriCount = await AddBatchServers4InnerUri(config, Utils.Base64Decode(strData), subid, isSub);
+        }
+        if (innerUriCount < 1)
+        {
+            innerUriCount = await AddBatchServers4InnerUri(config, strData, subid, isSub);
+        }
+        if (innerUriCount < 1)
+        {
+            innerUriCount = await AddBatchServers4InnerUri(config, Utils.Base64Decode(strData), subid, isSub);
+        }
         if (innerUriCount > 0)
         {
             if (counter > 0)