Uncaught Error: Class “WPUF_Admin_Settings” not found

I’m fairly sure that this is a new error as I am now getting emails with this content:

Since WordPress 5.2 there is a built-in feature that detects when a plugin or theme causes a fatal error on your site, and notifies you with this automated email.

In this case, WordPress caught an error with one of your plugins, WP User Frontend.

I’ve searched the database ans see you’ve had this before, so hopefully it can be resolved quickly. The resy of the site appears to be working normally

Error Details
=============
An error of type E_ERROR was caused in line 368 of the file /????/public_html/wp-content/plugins/wp-user-frontend/wpuf.php. Error message: Uncaught Error: Class “WPUF_Admin_Settings” not found in /????/public_html/wp-content/plugins/wp-user-frontend/wpuf.php:368
Stack trace:
#0 /????/public_html/wp-includes/class-wp-hook.php(303): WP_User_Frontend->instantiate(”)
#1 /????/public_html/wp-includes/class-wp-hook.php(327): WP_Hook->apply_filters(NULL, Array)
#2 /????/public_html/wp-includes/plugin.php(470): WP_Hook->do_action(Array)
#3 /????/public_html/wp-settings.php(441): do_action(‘plugins_loaded’)
#4 /????/public_html/wp-config.php(98): require_once(‘/????/…’)
#5 /????/public_html/wp-load.php(50): require_once(‘/????/…’)
#6 /????/public_html/wp-cron.php(44): require_once(‘/????/…’)
#7 {main}
thrown

The page I need help with: [log in to see the link]