Unable to access opusfile 0.12 sections documentation

Hi,

I am able to access opusfile main documentation page here:
https://opus-codec.org/docs/opusfile_api-0.12/index.html
(as well as its PDF version)

But the different sections look empty, tried with:
Opening and Closing: https://opus-codec.org/docs/opusfile_api-0.12/group__stream__open__close.html
(screenshot attached)
Decoding: https://opus-codec.org/docs/opusfile_api-0.12/group__stream__decoding.html

The last version available seems to be 0.7, both its HTML and PDF formats:
https://opus-codec.org/docs/opusfile_api-0.7/group__stream__decoding.html
https://opus-codec.org/docs/opusfile_api-0.7.pdf


Thanks in advance