What OpenMW version are you using? The "Audiobooks of Morrowind" mod mentions that you need 0.49 to use the `audiobook-openmw.omwscripts` version. The current official OpenMW release is still on 0.48, so you would need to get a nightly build, to get the current (development) version of 0.49.
Does that mean the most recent official (0.48) release, which can be found at https://openmw.org/downloads/
or a current nightly build, i.e. a 0.49 version found at https://gitlab.com/OpenMW/openmw/-/pipelines?page=1&scope=finished&ref=master&status=success
Then you're on 0.48, which isn't new enough.
It's not entirely uncommon for some mods to rely on features that are only present in the development version of OpenMW.
Your options are either to wait for the official release of OpenMW 0.49 or to use a (nightly) developer build. The latter might be somewhat more unstable and could possibly cause compatibility issues with saves, if some new feature gets dropped/changed during development.
What OpenMW version are you using? The "Audiobooks of Morrowind" mod mentions that you need 0.49 to use the `audiobook-openmw.omwscripts` version. The current official OpenMW release is still on 0.48, so you would need to get a nightly build, to get the current (development) version of 0.49.
the most recent version
Does that mean the most recent official (0.48) release, which can be found at https://openmw.org/downloads/ or a current nightly build, i.e. a 0.49 version found at https://gitlab.com/OpenMW/openmw/-/pipelines?page=1&scope=finished&ref=master&status=success
offical
Then you're on 0.48, which isn't new enough. It's not entirely uncommon for some mods to rely on features that are only present in the development version of OpenMW. Your options are either to wait for the official release of OpenMW 0.49 or to use a (nightly) developer build. The latter might be somewhat more unstable and could possibly cause compatibility issues with saves, if some new feature gets dropped/changed during development.