added extra error handling

finance_handler.py

@@ -10,7 +10,10 @@ def historical_return(company: yf.Ticker, history_years: int) -> float:
 
 
 def get_financial_info(ticker: str, metrics: list) -> dict:
-    company = yf.Ticker(ticker)
+    try:
+        company = yf.Ticker(ticker)
+    except:
+        return {metric: 'DELISTED' for metric in metrics}
     if not company.info.get("currentPrice"):
         return {metric: 'DELISTED' for metric in metrics}
     financial_info = {}