diff --git a/src/exchanges/ls.py b/src/exchanges/ls.py
index 9e23afa..9829548 100644
--- a/src/exchanges/ls.py
+++ b/src/exchanges/ls.py
@@ -1,10 +1,13 @@
 import requests
 import csv
 import io
+import logging
 from datetime import datetime
 from typing import List
 from .base import BaseExchange, Trade
 
+logger = logging.getLogger(__name__)
+
 class LSExchange(BaseExchange):
     @property
     def name(self) -> str:
@@ -15,23 +18,23 @@ class LSExchange(BaseExchange):
         if include_yesterday:
             endpoints.append("https://www.ls-x.de/_rpc/json/.lstc/instrument/list/lstctradesyesterday")
             endpoints.append("https://www.ls-x.de/_rpc/json/.lstc/instrument/list/lsxtradesyesterday")
-        
+
         headers = {
             'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36',
             'Accept': 'application/json',
             'Referer': 'https://www.ls-tc.de/'
         }
-        
+
         all_trades = []
         for url in endpoints:
             try:
                 response = requests.get(url, headers=headers)
                 response.raise_for_status()
-            
+
                 f = io.StringIO(response.text)
                 # Header: isin;displayName;tradeTime;price;currency;size;orderId
                 reader = csv.DictReader(f, delimiter=';')
-                
+
                 for item in reader:
                     try:
                         price = float(item['price'].replace(',', '.'))
@@ -39,11 +42,11 @@ class LSExchange(BaseExchange):
                         isin = item['isin']
                         symbol = item['displayName']
                         time_str = item['tradeTime']
-                        
+
                         # Format: 2026-01-23T07:30:00.992000Z
                         ts_str = time_str.replace('Z', '+00:00')
                         timestamp = datetime.fromisoformat(ts_str)
-                        
+
                         all_trades.append(Trade(
                             exchange=self.name,
                             symbol=symbol,
@@ -52,8 +55,9 @@ class LSExchange(BaseExchange):
                             quantity=quantity,
                             timestamp=timestamp
                         ))
-                    except Exception:
+                    except (ValueError, KeyError) as e:
+                        logger.debug(f"Fehler beim Parsen einer LS-Zeile: {e}")
                         continue
             except Exception as e:
-                print(f"Error fetching LS data from {url}: {e}")
+                logger.error(f"Fehler beim Abrufen von LS-Daten von {url}: {e}")
         return all_trades