Bug: Primary index name on "oc_learning_q_translations" is too long (NC 32)

[Trebor500]

Checklist

• I checked for similar existing issues (both open and closed) before posting.
• I am running the latest version.

Expected behavior

The Learning app should install, update, or function smoothly without throwing database schema errors.

Actual behavior

The app throws a database error, presumably during a database migration, installation, or access. The UI displays the following message:
"Es ist ein Fehler bei der Anfrage aufgetreten. Es kann nicht fortgefahren werden. Primary index name on 'oc_learning_q_translations' is too long."

Steps to Reproduce

1. Use Nextcloud v32 (hosted on a Managed Nextcloud environment at Hetzner).
2. Install the Learning app version 3.6 (which is the latest available version for NC 32).
3. The database error regarding the index name length appears and blocks further progress.