diff --git a/lookyloo/lookyloo.py b/lookyloo/lookyloo.py
index 2e6df56c..103c55d7 100644
--- a/lookyloo/lookyloo.py
+++ b/lookyloo/lookyloo.py
@@ -259,15 +259,22 @@ class Lookyloo():
         if (capture_dir / 'error.txt').exists():
             # Something went wrong
             with (Path(capture_dir) / 'error.txt').open() as _error:
-                error_cache['error'] = f'Capture in {capture_dir.name} has an error: {_error.read()}, see https://splash.readthedocs.io/en/stable/scripting-ref.html#splash-go and https://doc.qt.io/qt-5/qnetworkreply.html#NetworkError-enum'
-        elif not har_files:
+                content = _error.read()
+                try:
+                    error_to_cache = json.loads(content)['details']
+                except json.decoder.JSONDecodeError:
+                    # old format
+                    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
 
         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))
-            return
 
         har = HarFile(har_files[0], uuid)
 
@@ -512,10 +519,10 @@ class Lookyloo():
                     meta['browser'] = browser
                 with (dirpath / 'meta').open('w') as _meta:
                     json.dump(meta, _meta)
+
             if 'error' in item:
                 with (dirpath / 'error.txt').open('w') as _error:
-                    _error.write(item['error'])
-                continue
+                    json.dump(item['error'], _error)
 
             # The capture went fine
             harfile = item['har']
diff --git a/poetry.lock b/poetry.lock
index a6433be2..bf4c7516 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -167,7 +167,7 @@ description = "A Python module to bypass Cloudflare's anti-bot page."
 name = "cloudscraper"
 optional = false
 python-versions = "*"
-version = "1.2.40"
+version = "1.2.42"
 
 [package.dependencies]
 pyparsing = ">=2.4.7"
@@ -682,7 +682,7 @@ develop = true
 name = "pylookyloo"
 optional = false
 python-versions = "^3.6"
-version = "1.1"
+version = "1.1.1"
 
 [package.dependencies]
 requests = "^2.22.0"
@@ -866,7 +866,7 @@ description = "Scrapy splash wrapper as a standalone library."
 name = "scrapysplashwrapper"
 optional = false
 python-versions = ">=3.6,<4.0"
-version = "1.1"
+version = "1.1.1"
 
 [package.dependencies]
 scrapy = ">=1.8.0,<2.0.0"
@@ -1201,8 +1201,8 @@ click = [
     {file = "click-7.1.2.tar.gz", hash = "sha256:d2b5255c7c6349bc1bd1e59e08cd12acbbd63ce649f2588755783aa94dfb6b1a"},
 ]
 cloudscraper = [
-    {file = "cloudscraper-1.2.40-py2.py3-none-any.whl", hash = "sha256:30289d0f98413fe3c3b74c9f7547b8e6fff6aca698c23445996cf6bf80a8bad0"},
-    {file = "cloudscraper-1.2.40.tar.gz", hash = "sha256:e711f8a41393d9755178d6290fccbfc84f0b9db20bbdeababcf8cd9232f380cd"},
+    {file = "cloudscraper-1.2.42-py2.py3-none-any.whl", hash = "sha256:c8c255aaa84e80d2cb5bf2c1ad1ffa000ce864595ca4cdb75ff7aab6f97befec"},
+    {file = "cloudscraper-1.2.42.tar.gz", hash = "sha256:1d4e158de3be7a4e651083f13a14a25b75853186e989d9d97db1a08056b7a0b6"},
 ]
 colorama = [
     {file = "colorama-0.4.3-py2.py3-none-any.whl", hash = "sha256:7d73d2a99753107a36ac6b455ee49046802e59d9d076ef8e47b61499fa29afff"},
@@ -1543,8 +1543,8 @@ scrapy-splash = [
     {file = "scrapy_splash-0.7.2-py2.py3-none-any.whl", hash = "sha256:71ac958370f8732fec746a25a8235b03a4d3c4c93a59be51aa8e910a08cfe511"},
 ]
 scrapysplashwrapper = [
-    {file = "scrapysplashwrapper-1.1-py3-none-any.whl", hash = "sha256:e2695bcdafde424dc531dddbd6519abe093c5edf70aef36257648b85969eefb5"},
-    {file = "scrapysplashwrapper-1.1.tar.gz", hash = "sha256:8a27adf4efdd2145f525cf046dca3c224aa2dea0b7a43398b5ec9a6af0d698bc"},
+    {file = "scrapysplashwrapper-1.1.1-py3-none-any.whl", hash = "sha256:660275a5a6f899e09abf8b732e0724a280cab6b44cb3405c85a92e25b87dac6b"},
+    {file = "scrapysplashwrapper-1.1.1.tar.gz", hash = "sha256:1ac854f4c4e5a7a594d2e1a39d94330b67359420e16c7f1adc2a016579fcc16c"},
 ]
 service-identity = [
     {file = "service_identity-18.1.0-py2.py3-none-any.whl", hash = "sha256:001c0707759cb3de7e49c078a7c0c9cd12594161d3bf06b9c254fdcb1a60dc36"},
diff --git a/website/web/__init__.py b/website/web/__init__.py
index b4cfdf5f..c497b687 100644
--- a/website/web/__init__.py
+++ b/website/web/__init__.py
@@ -361,7 +361,6 @@ def tree(tree_uuid: str, urlnode_uuid: Optional[str]=None):
 
     if 'error' in cache:
         flash(cache['error'], 'error')
-        return redirect(url_for('index'))
 
     try:
         if lookyloo.get_config('enable_mail_notification'):
@@ -387,7 +386,7 @@ def index_generic(show_hidden: bool=False):
         cut_time = None  # type: ignore
     for capture_uuid in lookyloo.capture_uuids:
         cached = lookyloo.capture_cache(capture_uuid)
-        if not cached or 'error' in cached:
+        if not cached:
             continue
         if show_hidden:
             if 'no_index' not in cached:
diff --git a/website/web/templates/tree.html b/website/web/templates/tree.html
index 48e9fdab..8cbd8337 100644
--- a/website/web/templates/tree.html
+++ b/website/web/templates/tree.html
@@ -1,5 +1,7 @@
 {% extends "main.html" %}
 
+{% from 'bootstrap/utils.html' import render_messages %}
+
 {% block title %}Tree{% endblock %}
 
 {% block scripts %}
@@ -52,6 +54,8 @@
   var treeData = {{ tree_json | safe }};
 </script>
 
+{{ render_messages(container=True, dismissible=True) }}
+
 <a id="lookyloo-icon" href="/" ></a>
 <div id=screenshot class="collapse">
   <img src="{{ url_for('image', tree_uuid=tree_uuid) }}" class="img-fluid"/>