@if $_region === 'top' || $_region === 'bottom' || $_region === 'footer' {
  <br />
<b>Fatal error</b>:  Uncaught Error: Call to undefined function cs_get_partial_style() in /home/ioscotland/public_html/wp-content/plugins/cornerstone/includes/views/styles/elements/nav-layered-css.php:23
Stack trace:
#0 {main}
  thrown in <b>/home/ioscotland/public_html/wp-content/plugins/cornerstone/includes/views/styles/elements/nav-layered-css.php</b> on line <b>23</b><br />