The Bandsintown API v2 is deprecated. In order to continue using the API, you must upgrade to the Bandsintown API v3.
In order to find out which version you have, you can simply check the base URL of the API: the old base URL was "api.bandsintown.com" and the new one is "rest.bandsintown.com".
What's new in the Bandsintown API v3?
The ticket information is regrouped in a new structure, "offers"
"facebook_rsvp_url" has been replaced by "url"
How to upgrade to the v3:
You can use the Bandsintown API documentation by clicking here, or modifying manually by doing the following:
Change the base URL to the new one: rest.bandsintown.com
Replace "facebook_rsvp_url" by "url"
Put ticket information in an "offers" section