Website is Not opening private window

Hi Support,

I have purchased theme “Carper - Carpenter & Craftman Elementor Template Kit by Design_8 | ThemeForest”.
Its successfully installed. You can check the domain “https://slatejoineryme.com/
But theme is not compatible after Private Window (logout dashboard).

Please go through the bug Screenshot by Lightshot.

Please provide proper response about this issue.

Thanks