diff --git a/src/metadata/fetcher.py b/src/metadata/fetcher.py
index 0b0eda0..beb17c7 100644
--- a/src/metadata/fetcher.py
+++ b/src/metadata/fetcher.py
@@ -127,16 +127,21 @@ def fetch_metadata(isin):
 def save_metadata(metadata):
     # QuestDB Influx Line Protocol
     # table,tag1=val1 field1="str",field2=num timestamp
-    name = metadata['name'].replace(' ', '\\ ').replace(',', '\\,')
-    country = metadata['country']
-    continent = metadata['continent']
-    sector = metadata['sector']
+    
+    # Ensure all fields have valid non-empty values
+    name = metadata.get('name', 'Unknown') or 'Unknown'
+    country = metadata.get('country', 'Unknown') or 'Unknown'
+    continent = metadata.get('continent', 'Unknown') or 'Unknown'
+    sector = metadata.get('sector', 'Unknown') or 'Unknown'
     isin = metadata['isin']
     
+    # Escape special characters in name for Influx Line Protocol
+    name = name.replace(' ', '\\ ').replace(',', '\\,').replace('"', '\\"')
+    
     line = f'metadata,isin={isin} name="{name}",country="{country}",continent="{continent}",sector="{sector}"'
     
     try:
-        response = requests.post(f"http://{DB_HOST}:9000/write", data=line + "\n", auth=DB_AUTH)
+        response = requests.post(f"http://{DB_HOST}:9000/write", data=line + "\\n", auth=DB_AUTH)
         if response.status_code not in [200, 204]:
             logger.error(f"Error saving metadata: {response.text}")
     except Exception as e: