cas_error template child theme not used

Hi,
This plugin is really great & works fine.

Just a bug, the the “car_error.php” template resolver use the “get_template_directory()” function that resolve templates folder for the theme, but not child theme.

The doc https://codex.www.ads-software.com/Function_Reference/get_template_directory say that use of function “get_stylesheet_directory()” is the right way.

Thanks & cheers
Cyrille