diff --git a/lookyloo/lookyloo.py b/lookyloo/lookyloo.py
index e7e43271..026f3514 100644
--- a/lookyloo/lookyloo.py
+++ b/lookyloo/lookyloo.py
@@ -989,15 +989,16 @@ class Lookyloo():
     def get_hhh_investigator(self, hhh: str, /) -> Tuple[List[Tuple[str, str, str, str]], List[Tuple[str, str]]]:
         '''Returns all the captures related to a cookie name entry, used in the web interface.'''
         all_captures = dict(self.indexing.get_http_headers_hashes_captures(hhh))
-        cached_captures = self.sorted_capture_cache([entry for entry in all_captures])
-        captures = [(cache.uuid,
-                     self.get_urlnode_from_tree(cache.uuid, all_captures[cache.uuid]).hostnode_uuid,
-                     self.get_urlnode_from_tree(cache.uuid, all_captures[cache.uuid]).name,
-                     cache.title) for cache in cached_captures]
-        # get the headers and format them as they were in the response
-        urlnode = self.get_urlnode_from_tree(cached_captures[0].uuid, all_captures[cached_captures[0].uuid])
-        headers = [(header["name"], header["value"]) for header in urlnode.response['headers']]
-        return captures, headers
+        if cached_captures := self.sorted_capture_cache([entry for entry in all_captures]):
+            captures = [(cache.uuid,
+                         self.get_urlnode_from_tree(cache.uuid, all_captures[cache.uuid]).hostnode_uuid,
+                         self.get_urlnode_from_tree(cache.uuid, all_captures[cache.uuid]).name,
+                         cache.title) for cache in cached_captures]
+            # get the headers and format them as they were in the response
+            urlnode = self.get_urlnode_from_tree(cached_captures[0].uuid, all_captures[cached_captures[0].uuid])
+            headers = [(header["name"], header["value"]) for header in urlnode.response['headers']]
+            return captures, headers
+        return [], []
 
     def hash_lookup(self, blob_hash: str, url: str, capture_uuid: str) -> Tuple[int, Dict[str, List[Tuple[str, str, str, str, str]]]]:
         '''Search all the captures a specific hash was seen.