diff --git a/apps/common/event/listener_manage.py b/apps/common/event/listener_manage.py
index 14b371bfd..158f1cd67 100644
--- a/apps/common/event/listener_manage.py
+++ b/apps/common/event/listener_manage.py
@@ -181,8 +181,8 @@ class ListenerManagement:
     def sync_web_dataset(args: SyncWebDatasetArgs):
         if try_lock('sync_web_dataset' + args.lock_key):
             try:
-                ForkManage(args.url, args.selector.split(" ")).fork(2, set(),
-                                                                    args.handler)
+                ForkManage(args.url, args.selector.split(" ") if args.selector is not None else []).fork(2, set(),
+                                                                                                         args.handler)
             except Exception as e:
                 logging.getLogger("max_kb_error").error(f'{str(e)}:{traceback.format_exc()}')
             finally:
diff --git a/apps/common/util/fork.py b/apps/common/util/fork.py
index 8897d6dee..6c70ce796 100644
--- a/apps/common/util/fork.py
+++ b/apps/common/util/fork.py
@@ -59,7 +59,7 @@ class Fork:
     def __init__(self, base_fork_url: str, selector_list: List[str]):
         self.base_fork_url = urljoin(base_fork_url if base_fork_url.endswith("/") else base_fork_url + '/', '.')
         self.base_fork_url = self.base_fork_url[:-1]
-        self.selector_list = selector_list
+        self.selector_list = [selector for selector in selector_list if selector is not None and len(selector) > 0]
         self.urlparse = urlparse(self.base_fork_url)
         self.base_url = ParseResult(scheme=self.urlparse.scheme, netloc=self.urlparse.netloc, path='', params='',
                                     query='',
diff --git a/apps/dataset/serializers/document_serializers.py b/apps/dataset/serializers/document_serializers.py
index 400964c1b..949fe0b2f 100644
--- a/apps/dataset/serializers/document_serializers.py
+++ b/apps/dataset/serializers/document_serializers.py
@@ -166,7 +166,8 @@ class DocumentSerializers(ApiMixin, serializers.Serializer):
                 document.status = Status.embedding
                 document.save()
                 source_url = document.meta.get('source_url')
-                selector_list = document.meta.get('selector').split(" ") if 'selector' in document.meta else []
+                selector_list = document.meta.get('selector').split(
+                    " ") if 'selector' in document.meta and document.meta.get('selector') is not None else []
                 result = Fork(source_url, selector_list).fork()
                 if result.status == 200:
                     # 删除段落