diff --git a/openslides/utils/search.py b/openslides/utils/search.py
index 0da9b4f63..4193ac87f 100644
--- a/openslides/utils/search.py
+++ b/openslides/utils/search.py
@@ -73,7 +73,12 @@ class Index:
             pass
         path = self.get_index_path()
         if path != 'ram' and exists_in(path):
-            return open_dir(path)
+            # Quick fix to bypass errors when many clients login.
+            # TODO: Solve this hack.
+            try:
+                return open_dir(path)
+            except FileNotFoundError:
+                pass
         return self.create_index()