Updating Highend Theme to v3.7.7 from v3.6.6.1

Hi,
I am running WP v5.4.9 and I tried to update the Highend theme and got the error below, after running the theme update from v3.6.6.1 to v3.7.7.
I ran a backup before updating and just did a restore so, the site is now back up and running here michaelenolan.com
My web host wants me to update to WP v5.9 and I am wondering if I need to update the Highend them before or after updating to WP 5.9m
Please advise. Thanks.

Fatal error:
Uncaught ArgumentCountError: Too few arguments to function highend_deprecated_template_parts(), 3 passed in /home2/vanauste/domains/michaelenolan.com/public_html/wp-includes/class-wp-hook.php on line 287 and exactly 4 expected in /home2/vanauste/domains/michaelenolan.com/public_html/wp-content/themes/HighendWP/functions/deprecated.php:22 Stack trace: #0 /home2/vanauste/domains/michaelenolan.com/public_html/wp-includes/class-wp-hook.php(287): highend_deprecated_template_parts(‘template-parts/…’, ”, Array) #1 /home2/vanauste/domains/michaelenolan.com/public_html/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters(”, Array) #2 /home2/vanauste/domains/michaelenolan.com/public_html/wp-includes/plugin.php(478): WP_Hook->do_action(Array) #3 /home2/vanauste/domains/michaelenolan.com/public_html/wp-includes/general-template.php(166): do_action(‘get_template_pa…’, ‘template-parts/…’, ”, Array) #4 /home2/vanauste/domains/michaelenolan.com/public_html/wp-content/themes/HighendWP/functions/template-parts.p in /home2/vanauste/domains/michaelenolan.com/public_html/wp-content/themes/HighendWP/functions/deprecated.php on line 22
There has been a critical error on your website.