diff --git a/lookyloo/lookyloo.py b/lookyloo/lookyloo.py
index 89cc101c..012a0235 100644
--- a/lookyloo/lookyloo.py
+++ b/lookyloo/lookyloo.py
@@ -269,16 +269,24 @@ class Lookyloo():
                     error_to_cache = content
                 error_cache['error'] = f'The capture has an error: {error_to_cache}'
 
-        if not har_files:
-            error_cache['error'] = f'No har files in {capture_dir}'
-            return
+        fatal_error = False
+        if har_files:
+            try:
+                har = HarFile(har_files[0], uuid)
+            except Har2TreeError as e:
+                error_cache['error'] = e.message
+                fatal_error = True
+        else:
+            error_cache['error'] = f'No har files in {capture_dir.name}'
+            fatal_error = True
 
         if error_cache:
             self.logger.warning(error_cache['error'])
             self.redis.hmset(str(capture_dir), error_cache)
             self.redis.hset('lookup_dirs', uuid, str(capture_dir))
 
-        har = HarFile(har_files[0], uuid)
+        if fatal_error:
+            return
 
         redirects = har.initial_redirects
         incomplete_redirects = False
diff --git a/poetry.lock b/poetry.lock
index bf4c7516..b81fd363 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -296,7 +296,7 @@ description = "HTTP Archive (HAR) to ETE Toolkit generator"
 name = "har2tree"
 optional = false
 python-versions = ">=3.6,<4.0"
-version = "1.1.1"
+version = "1.1.2"
 
 [package.dependencies]
 beautifulsoup4 = ">=4.8.2,<5.0.0"
@@ -1260,8 +1260,8 @@ gunicorn = [
     {file = "gunicorn-20.0.4.tar.gz", hash = "sha256:1904bb2b8a43658807108d59c3f3d56c2b6121a701161de0ddf9ad140073c626"},
 ]
 har2tree = [
-    {file = "har2tree-1.1.1-py3-none-any.whl", hash = "sha256:c001ee687c1b114c416404912fded4e82db67d891a3a658d88130b82a339f73c"},
-    {file = "har2tree-1.1.1.tar.gz", hash = "sha256:ff80c721783c2c50fe68c9e9ec7800396a561e624b4856ed05f0002815c35d5c"},
+    {file = "har2tree-1.1.2-py3-none-any.whl", hash = "sha256:45fdd0fda073cc454975c64a8f6a4667734c8eb61ba2bc4497866ff7d142e01b"},
+    {file = "har2tree-1.1.2.tar.gz", hash = "sha256:29c95ea4d9f63db977bf6453421ddcf08c2326c6092d9454cde75b9b7c7d918f"},
 ]
 hyperlink = [
     {file = "hyperlink-19.0.0-py2.py3-none-any.whl", hash = "sha256:ab4a308feb039b04f855a020a6eda3b18ca5a68e6d8f8c899cbe9e653721d04f"},