diff --git a/bin/archiver.py b/bin/archiver.py
index 6f0fe57..1a733c4 100755
--- a/bin/archiver.py
+++ b/bin/archiver.py
@@ -25,7 +25,7 @@ class Archiver(AbstractManager):
     def __init__(self, loglevel: int=logging.INFO):
         super().__init__(loglevel)
         self.script_name = 'archiver'
-        self.redis = Redis(unix_socket_path=get_socket_path('cache'), decode_responses=True)
+        self.redis = Redis(unix_socket_path=get_socket_path('cache'))
 
         # make sure archived captures dir exists
         self.archived_captures_dir = get_homedir() / 'archived_captures'
diff --git a/website/web/__init__.py b/website/web/__init__.py
index 92f4f27..18688eb 100644
--- a/website/web/__init__.py
+++ b/website/web/__init__.py
@@ -225,9 +225,13 @@ def after_request(response):
 
 @app.route('/tree/<string:tree_uuid>/host/<string:node_uuid>/hashes', methods=['GET'])
 def hashes_hostnode(tree_uuid: str, node_uuid: str):
-    hashes = lookyloo.get_hashes(tree_uuid, hostnode_uuid=node_uuid)
-    return send_file(BytesIO('\n'.join(hashes).encode()),
-                     mimetype='test/plain', as_attachment=True, download_name=f'hashes.{node_uuid}.txt')
+    try:
+        hashes = lookyloo.get_hashes(tree_uuid, hostnode_uuid=node_uuid)
+        return send_file(BytesIO('\n'.join(hashes).encode()),
+                         mimetype='test/plain', as_attachment=True, download_name=f'hashes.{node_uuid}.txt')
+    except NoValidHarFile:
+        return send_file(BytesIO(b'The capture is broken and does not contain any HAR files.'),
+                         mimetype='test/plain', as_attachment=True, download_name=f'hashes.{node_uuid}.txt')
 
 
 @app.route('/tree/<string:tree_uuid>/host/<string:node_uuid>/text', methods=['GET'])