The database of @LivegramBot has been publicly available for a while due to the security bug.

The issue is fixed now, but for security reasons, all API tokens of connected bots will be revoked by the Telegram team.

If you want your connected bots to continue working as before, manually revoke API tokens at @BotFather and update them in the bot settings at @LivegramBot using ‘Update API Token’ button.

We apologize for the inconvenience and we are doing our best to solve this issue.