The entity definition within the form is invalid. Entities specification version [2024.1.0] is not supported. we are using the enties from last 6 months and today we have get this error while update the one language in the form.
This looks like you converted your form using https://getodk.org/xlsform/ or pyxform outside of Central but are using an older version of Central or of Collect. If you upload your XLSForm directly to your Central, that should work.
We will be releasing a new Central version later today and then all forms will use Entities specification version 2024.1.0 which makes Entity creation and update available offline.