Update app.py

app.py

@@ -283,9 +283,25 @@ def run_workflow(
                 "✅ Chart generation complete!",
             )
 
+    except ValueError as e:
+        # API key or configuration errors
+        error_msg = f"❌ Configuration Error: {str(e)}\n\nPlease check your API keys in HuggingFace Spaces settings."
+        return (None, None, None, None, None, error_msg)
     except Exception as e:
         import traceback
-        error_msg = f"Error: {str(e)}\n\nTraceback:\n{traceback.format_exc()}"
+        error_type = type(e).__name__
+        error_msg = f"❌ Error ({error_type}): {str(e)}\n\n"
+        
+        # Provide helpful messages for common errors
+        if "API" in error_type or "Connection" in error_type or "Illegal header" in str(e):
+            error_msg += "💡 Tip: Check your API key in HuggingFace Spaces settings. Make sure there are no extra spaces or newlines."
+        elif "model" in str(e).lower():
+            error_msg += "💡 Tip: The selected model might not be available. Try a different model."
+        
+        # Only show full traceback in development (not in production)
+        if os.getenv("DEBUG", "false").lower() == "true":
+            error_msg += f"\n\nFull traceback:\n{traceback.format_exc()}"
+        
         return (None, None, None, None, None, error_msg)
 
 
@@ -418,5 +434,6 @@ if __name__ == "__main__":
     demo.launch(
         server_name="0.0.0.0",
         server_port=7860,
-        share=True,
-    )
+        share=False,
+    )
+