Hi Balt,
There seems to be a little mess in your installation, probably as a result of moving the PixInsight.app application bundle. The fastest and simplest way to restore everything to a default working state is performing a complete reset of all PixInsight settings. This is very easy to do. Please follow these steps:
1. Open your Applications folder on Finder. Look for the PixInsight.app application bundle. Select PixInsight.app by clicking on it (a single click — don't launch the application at this point).
2. If you have a two-button mouse, right-click over PixInsight.app to open a context menu. If you have a one-button mouse, press the Ctrl key (also known as Meta key on the Mac) while you click, with the same result.
3. Now press the Ctrl key and hold it pressed. Then click the Open option on the context menu. Don't release Ctrl until a dialog box pops up.
4. The dialog box tells you that you've launched PixInsight in a special "uninstall" mode. This is a back door trick that allows you to reset the whole PixInsight configuration —useful in catastrophic situations
. Click the Yes button.
5. Accept the next dialog box (don't care about the backup configuration file; you can delete it later), and you're done. Now you can run PixInsight the usual way and everything should be normal. You may need to perform some manual configurations if you customized some aspects of PixInsight (with Preferences).
For the next releases (1.5.8 will be ready in less than a week or so), just replace your PixInsight.app on /Applications, and there will be no problems.
