Update agents/api_agent.py

agents/api_agent.py

@@ -2,6 +2,7 @@ import yfinance as yf
 
 def get_asia_tech_risk(tickers):
     data = yf.download(tickers, period="2d")['Close']
+    if data.empty:
+        return {}
     percent_changes = data.pct_change().iloc[-1] * 100
     return percent_changes.to_dict()
-