Error upgrading to most recent version

Hello,

I am getting an error when updating to the latest version of Ajax Search Pro.

Attached is the detailed information provided in the error notice from wordpress:

When seeking help with this issue, you may be asked for some of the following information:
WordPress version 6.9.4
Active theme: Astra Child (version 1.0.0)
Current plugin: Ajax Search Pro (version 4.28.5)
PHP version 8.2.31

Error Details
=============
An error of type E_ERROR was caused in line 173 of the file /home/customer/www/showbackdrops.com/public_html/wp-content/plugins/ajax-search-pro/src/server/Updates/Manager.php. Error message: Uncaught Error: Class “WPDRMS\ASP\Utils\Server” not found in /home/customer/www/showbackdrops.com/public_html/wp-content/plugins/ajax-search-pro/src/server/Updates/Manager.php:173
Stack trace:
#0 /home/customer/www/showbackdrops.com/public_html/wp-content/plugins/ajax-search-pro/src/server/Updates/Manager.php(80): WPDRMS\ASP\Updates\Manager->getDownloadUrl(’87c27ae2-9b1e-4…’)
#1 /home/customer/www/showbackdrops.com/public_html/wp-includes/class-wp-hook.php(343): WPDRMS\ASP\Updates\Manager->check_update(Object(stdClass))
#2 /home/customer/www/showbackdrops.com/public_html/wp-includes/plugin.php(205): WP_Hook->apply_filters(Object(stdClass), Array)
#3 /home/customer/www/showbackdrops.com/public_html/wp-includes/option.php(2654): apply_filters(‘pre_set_site_tr…’, Object(stdClass), ‘update_plugins’)
#4 /home/customer/www/showbackdrops.com/public_html/wp-includes/update.php(609): set_site_transient(‘update_plugins’, Object(stdClass))
#5 /home/customer/www/showbackdrops.com/public_html/wp-includes/class-wp-hook.php(339): wp_update_plugins()
#6 /home/customer/www/showbackdrops.com/public_html/wp-includes/class-wp-hook.php(365): WP_Hook->apply_filters(NULL, Array)
#7 /home/customer/www/showbackdrops.com/public_html/wp-includes/plugin.php(522): WP_Hook->do_action(Array)
#8 /home/customer/www/showbackdrops.com/public_html/wp-admin/includes/class-plugin-upgrader.php(412): do_action(‘upgrader_proces…’, Object(Plugin_Upgrader), Array)
#9 /home/customer/www/showbackdrops.com/public_html/wp-admin/includes/ajax-actions.php(4653): Plugin_Upgrader->bulk_upgrade(Array)
#10 /home/customer/www/showbackdrops.com/public_html/wp-includes/class-wp-hook.php(341): wp_ajax_update_plugin(”)
#11 /home/customer/www/showbackdrops.com/public_html/wp-includes/class-wp-hook.php(365): WP_Hook->apply_filters(”, Array)
#12 /home/customer/www/showbackdrops.com/public_html/wp-includes/plugin.php(522): WP_Hook->do_action(Array)
#13 /home/customer/www/showbackdrops.com/public_html/wp-admin/admin-ajax.php(192): do_action(‘wp_ajax_update-…’)
#14 {main}
thrown

Any assistance to help resolve is appreciated.

Many Thanks!

Best,

Chris