Telegram won't work

Hi Hass
I’ve been trying for few days to configure telegram on homeassistant/

my configuration.yaml file containts:
telegram_bot:

  • platform: polling
    api_key: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXx
    allowed_chat_ids:
    • XXXXXXXXXXX

My notify.yaml contains:
notify:

  • name: telegram
    platform: telegram
    chat_id: XXXXXXXXXX

config check is fine/
trying to sent text message from services and get the this comment in the log:

Error sending message: Chat not found. Args: (XXXXXXXXX, ‘test’), kwargs: {‘parse_mode’: ‘Markdown’, ‘disable_notification’: False, ‘disable_web_page_preview’: None, ‘reply_to_message_id’: None, ‘reply_markup’: None, ‘timeout’: None}

please help