Fatal error version 6.3.10

Please, is possible have a minor version to reinstall? or can you help me to solve it?
best regards

Fatal error: Uncaught Error: Call to undefined function wp_theme_has_theme_json() in /home/iusgrxth/public_html/wp-content/plugins/use-any-font/includes/functions/uaf_block_editor_functions.php:62 Stack trace: #0 /home/iusgrxth/public_html/wp-content/plugins/use-any-font/includes/functions/uaf_block_editor_functions.php(49): uaf_update_theme_json_font(Array) #1 /home/iusgrxth/public_html/wp-content/plugins/use-any-font/includes/functions/uaf_font_functions.php(229): uaf_block_editor_custom_fonts() #2 /home/iusgrxth/public_html/wp-content/plugins/use-any-font/includes/functions/uaf_admin_functions.php(156): uaf_write_css() #3 /home/iusgrxth/public_html/wp-includes/class-wp-hook.php(307): uaf_plugin_activated(”) #4 /home/iusgrxth/public_html/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters(”, Array) #5 /home/iusgrxth/public_html/wp-includes/plugin.php(476): WP_Hook->do_action(Array) #6 /home/iusgrxth/public_html/wp-admin/plugins.php(194): do_action(‘activate_use-an…’) #7 {main} thrown in?/home/iusgrxth/public_html/wp-content/plugins/use-any-font/includes/functions/uaf_block_editor_functions.php?on line?62