Conflict with phlox theme

[sandigf]

Help, There was errors with phlox theme:

Fatal error: Uncaught Error: Call to a member function add_help_tab() on null in D:\xampp\htdocs\bionusa\wp-content\themes\phlox\auxin\auxin-include\classes\class-auxin-theme-screen-help.php:53 Stack trace: #0 D:\xampp\htdocs\bionusa\wp-includes\class-wp-hook.php(287): Auxin_Theme_Screen_Help->display_support_info('') #1 D:\xampp\htdocs\bionusa\wp-includes\class-wp-hook.php(311): WP_Hook->apply_filters(NULL, Array) #2 D:\xampp\htdocs\bionusa\wp-includes\plugin.php(478): WP_Hook->do_action(Array) #3 D:\xampp\htdocs\bionusa\wp-content\plugins\wp-user-frontend\includes\setup-wizard.php(170): do_action('admin_head') #4 D:\xampp\htdocs\bionusa\wp-content\plugins\wp-user-frontend\includes\setup-wizard.php(144): WPUF_Setup_Wizard->setup_wizard_header() #5 D:\xampp\htdocs\bionusa\wp-includes\class-wp-hook.php(287): WPUF_Setup_Wizard->setup_wizard('') #6 D:\xampp\htdocs\bionusa\wp-includes\class-wp-hook.php(311): WP_Hook->apply_filters(NULL, Array) #7 D:\xampp\htdocs\bionusa\wp-includes\plugin.php(478): WP_Hook->do_action(Array) # in D:\xampp\htdocs\bionusa\wp-content\themes\phlox\auxin\auxin-include\classes\class-auxin-theme-screen-help.php on line 53