diff --git a/apps/backend/app/utils/report_template.py b/apps/backend/app/utils/report_template.py
index f3d06e2c..bbb955fa 100644
--- a/apps/backend/app/utils/report_template.py
+++ b/apps/backend/app/utils/report_template.py
@@ -1,6 +1,19 @@
 def render_report_html(data):
-    params_html = "".join(f"<tr><td>{k}</td><td>{v}</td></tr>" for k, v in data["asl_parameters"])
-    missing_html = "".join(f"<li>{param}</li>" for param in data["missing_parameters"])
+    # Support asl_parameters as either list of tuples or dict
+    asl_params = data.get("asl_parameters", [])
+    if isinstance(asl_params, dict):
+        asl_params = list(asl_params.items())
+    params_html = "".join(f"<tr><td>{k}</td><td>{v}</td></tr>" for k, v in asl_params)
+
+    # Support both 'missing_parameters' (template key) and 'missing_required_parameters' (processor key)
+    missing = data.get("missing_parameters", data.get("missing_required_parameters", []))
+    if isinstance(missing, dict):
+        missing = list(missing.keys())
+    missing_html = "".join(f"<li>{param}</li>" for param in missing)
+
+    basic_report = data.get("basic_report", "")
+    extended_report = data.get("extended_report", "")
+
     return f"""
     <html>
     <head>
@@ -18,9 +31,9 @@ def render_report_html(data):
             {params_html}
         </table>
         <h2>Basic Report</h2>
-        <p>{data["basic_report"]}</p>
+        <p>{basic_report}</p>
         <h2>Extended Report</h2>
-        <p>{data["extended_report"]}</p>
+        <p>{extended_report}</p>
         <h2>Missing Parameters</h2>
         <ul>
             {missing_html}
@@ -28,3 +41,4 @@ def render_report_html(data):
     </body>
     </html>
     """
+
