diff --git a/function/get_chart.py b/function/get_chart.py
index a29a36e..5c24938 100644
--- a/function/get_chart.py
+++ b/function/get_chart.py
@@ -1,22 +1,27 @@
-from http import HTTPStatus
-
 import yaml
 import requests
-from urllib3 import HTTPSConnectionPool
+from http import HTTPStatus
 
 config = yaml.safe_load(open('config.yaml'))
 
 def get_chart(from_currency: str, conv_currency: str) -> (dict, None):
     try:
-        res = requests.get(f'{config['kekkai_instance']}/api/getChart/week/', {
-                    'from_currency': from_currency,
-                    'conv_currency': conv_currency
-                }, timeout=3)
+        response = requests.get(f'{config["kekkai_instance"]}/api/getChart/week/', params={
+            'from_currency': from_currency,
+            'conv_currency': conv_currency
+        }, timeout=3)
+        
+        if not HTTPStatus(response.status_code).is_success:
+            return None
+
+        try:
+            data = response.json()
+            return data.get('message', None)
+        except ValueError:
+            return None
     except requests.exceptions.ConnectionError:
+        print("API connection error.")
         return None
-
-    if not HTTPStatus(res.status_code).is_success:
+    except requests.exceptions.RequestException as e:
+        print(f"There was an error: {e}")
         return None
-
-
-    return res.json().get('message', None)
\ No newline at end of file