I've removed it from Permalinks and still not working.
Later on, starting WP and XTheme installation from scratch (to avoid updates troubles):
- WP 4.9.8
- X Theme from purchased download (version 6.3.6)
- Cornerstone included in X Theme 6.3.6 (Cornerstone 3.3.6)
Then go to Cornerstone and still not working whem clicking INSPECTOR.
I've also tried to change Permalinks to othe options (Numeric, etc.) and does not either work.
It's rare so it i a new installation with no configuration manual update.
Appreciate to know what now.