diff --git a/lookyloo/capturecache.py b/lookyloo/capturecache.py
index 07c02101..79bae2c0 100644
--- a/lookyloo/capturecache.py
+++ b/lookyloo/capturecache.py
@@ -7,6 +7,8 @@ import json
 from pathlib import Path
 from typing import Any, Dict, List, Optional, Tuple
 
+from .exceptions import LookylooException
+
 
 @dataclass
 class CaptureCache():
@@ -23,8 +25,10 @@ class CaptureCache():
             self.capture_dir: Path = cache_entry['capture_dir']
         elif not cache_entry.get('error'):
             missing = set(self.__default_cache_keys) - set(cache_entry.keys())
-            raise Exception(f'Missing keys ({missing}), no error message. It should not happen.')
+            raise LookylooException(f'Missing keys ({missing}), no error message. It should not happen.')
 
+        # Error without all the keys in __default_cache_keys was fatal.
+        # if the keys in __default_cache_keys are present, it was an HTTP error
         self.error: Optional[str] = cache_entry.get('error')
         self.incomplete_redirects: bool = True if cache_entry.get('incomplete_redirects') == 1 else False
         self.no_index: bool = True if cache_entry.get('no_index') == 1 else False
diff --git a/lookyloo/lookyloo.py b/lookyloo/lookyloo.py
index daa43281..9a3fd7a9 100644
--- a/lookyloo/lookyloo.py
+++ b/lookyloo/lookyloo.py
@@ -453,12 +453,12 @@ class Lookyloo():
         (capture_dir / 'no_index').touch()
 
     @property
-    def capture_uuids(self):
+    def capture_uuids(self) -> List[str]:
         '''All the capture UUIDs present in the cache.'''
-        return self.redis.hkeys('lookup_dirs')
+        return self.redis.hkeys('lookup_dirs')  # type: ignore
 
     @property
-    def sorted_cache(self):
+    def sorted_cache(self) -> List[CaptureCache]:
         '''Get all the captures in the cache, sorted by timestamp (new -> old).'''
         all_cache: List[CaptureCache] = []
         p = self.redis.pipeline()
@@ -490,7 +490,7 @@ class Lookyloo():
             return None
         try:
             return CaptureCache(cached)
-        except Exception as e:
+        except LookylooException as e:
             self.logger.warning(f'Cache ({capture_dir}) is invalid ({e}): {json.dumps(cached, indent=2)}')
             return None