fix: Added an exception and fixed the returned result on error

utils/convert.py

@@ -54,9 +54,11 @@ class Converter:
 
         self.conv_amount = float(conv_amount)
 
+
     def kekkai(self) -> bool:
         date = datetime.today().strftime('%Y-%m-%d')
 
+        try:
             res = requests.get(f'{config['kekkai_instance']}/api/getRate/', {
                 'from_currency': self.from_currency,
                 'conv_currency': self.conv_currency,
@@ -66,10 +68,12 @@ class Converter:
             data = res.json()
 
             if not HTTPStatus(res.status_code).is_success:
-            return None
+                return False
 
             self.conv_amount = float(data.get('rate') * self.amount)
 
             return True
+        except requests.exceptions.ConnectionError:
+            return False