As you have probably already noticed, the site and the API are out-of-sync the last couple of days. The reason is that we are in the process of migrating our data to the v2.0 structure but to also be able to support v1.0 for a few more months as well before it becomes obsolete.
Due to the huge amount of data, this process takes some time but we are doing our best to complete it as soon as possible. Litecoin support will be added to the site as well after the process is done and great stability will be restored.
If you are an API user, we urge you to start looking at the v2.0 documentation and switch to that as soon as possible.
The website is still using v1.0 structure but we will be changing that very soon. When that switch has completed, we will announce an END-OF-LIFE date for v1.0.
Thank you for your patience.