Thank you so much. You are very kindYou are using PixInsight 1.8.8-5. In order to update to the current WBPP version (v2.5.4), you have to install the current version of PixInsight (v1.8.8-9) first.
So you will have to
- download (from the PixInsight's Software Distribution) the current PixInsight version,
- uninstall PixInsight 1.8.8-5,
- install the current PixInsight version and
- apply updates via 'RESOURCES/Updates/Check for Updates'.
Bernd