Apache Solr Reference Guide isn't accessible

[Dorion Caroline]

Hi,

I can't access to Apache Solr Reference Guide since few days.
Example:
URL

  *   https://lucene.apache.org/solr/guide/8_8/
  *   https://lucene.apache.org/solr/guide/8_7/
Result:
Not Found
The requested URL was not found on this server.

Do you know what going on?

Thanks
Caroline Dorion