theme error v4.0.1

Hi there,

I’m receiving errors within the header.php file in my Highend Theme. I was hoping I could receive some assistance sorting through it. I’m currently running Highend v 4.0.1.

Here is my error log:

[16-Sep-2024 17:51:50 UTC] PHP Fatal error: Uncaught Error: Call to undefined function highend_main_wrapper_class() in /home3/qgsjnvmy/public_html/wp-content/themes/HighendWP/header.php:31
Stack trace:
#0 /home3/qgsjnvmy/public_html/wp-includes/template.php(810): require_once()
#1 /home3/qgsjnvmy/public_html/wp-includes/template.php(745): load_template(‘/home3/qgsjnvmy…’, true, Array)
#2 /home3/qgsjnvmy/public_html/wp-includes/general-template.php(48): locate_template(Array, true, true, Array)
#3 /home3/qgsjnvmy/public_html/wp-content/themes/HighendWP/page.php(18): get_header()
#4 /home3/qgsjnvmy/public_html/wp-includes/template-loader.php(106): include(‘/home3/qgsjnvmy…’)
#5 /home3/qgsjnvmy/public_html/wp-blog-header.php(19): require_once(‘/home3/qgsjnvmy…’)
#6 /home3/qgsjnvmy/public_html/index.php(17): require(‘/home3/qgsjnvmy…’)
#7 {main}
thrown in /home3/qgsjnvmy/public_html/wp-content/themes/HighendWP/header.php on line 31

Any assistance is greatly appreciated as my site is currently down.