Backtest errors returned in try-catch.

backend/services/backend_api_client.py

@@ -196,6 +196,8 @@ class BackendAPIClient:
         }
         response = requests.post(url, json=payload)
         backtesting_results = response.json()
+        if "error" in backtesting_results:
+            raise Exception(backtesting_results["error"])
         if "processed_data" not in backtesting_results:
             data = None
         else:

frontend/components/backtesting.py

@@ -22,6 +22,7 @@ def backtesting_section(inputs, backend_api_client):
     if run_backtesting:
         start_datetime = datetime.combine(start_date, datetime.min.time())
         end_datetime = datetime.combine(end_date, datetime.max.time())
+        try:
             backtesting_results = backend_api_client.run_backtesting(
                 start_time=int(start_datetime.timestamp()) * 1000,
                 end_time=int(end_datetime.timestamp()) * 1000,
@@ -29,6 +30,10 @@ def backtesting_section(inputs, backend_api_client):
                 trade_cost=trade_cost / 100,
                 config=inputs,
             )
+        except Exception as e:
+            st.error(e)
+            return None
+            
         if len(backtesting_results["processed_data"]) == 0:
             st.error("No trades were executed during the backtesting period.")
             return None