Apologies for the inconvenience. The text "Author's posts" is part of the site’s code and does not have a dedicated setting for direct modification. However, you can easily change it using Joomla's Language Override feature.

Please refer to the following tutorial for a step-by-step guide: 🎥 How to Use Joomla Language Override

The language constant you need to override is: HELIX_ARTICLE_AUTHORS_POSTS

If you need further assistance with this process, feel free to reach out.