Notice: Trying to get property ‘name’ of non-object in Menus tab

WordPress 6.4.2
wpForo 2.2.9

Fresh wpForo install on a new WP site; when clicking the Appearance -> Menus tab, the page defaults to showing the “wpForo Navigation” menu, and near the bottom you see an error:

Notice: Trying to get property 'name' of non-object in /home/mysite/public_html/lab/wp-admin/nav-menus.php on line 1215

Screenshot: https://imgur.com/a/JtMboQj

Code block at that location:

                            <?php if ( current_theme_supports( 'menus' ) ) : ?>

                                <fieldset class="menu-settings-group menu-theme-locations">
                                    <legend class="menu-settings-group-name howto"><?php _e( 'Display location' ); ?></legend>
                                    <?php
                                    foreach ( $locations as $location => $description ) :
                                        $checked = false;

                                        if ( isset( $menu_locations[ $location ] )
                                                && 0 !== $nav_menu_selected_id
                                                && $menu_locations[ $location ] === $nav_menu_selected_id
                                        ) {
                                                $checked = true;
                                        }
                                        ?>
                                        <div class="menu-settings-input checkbox-input">
                                            <input type="checkbox"<?php checked( $checked ); ?> name="menu-locations[<?php echo esc_attr( $location ); ?>]" id="locations-<?php echo esc_attr( $location ); ?>" value="<?php echo esc_attr( $nav_menu_selected_id ); ?>" />
                                            <label for="locations-<?php echo esc_attr( $location ); ?>"><?php echo $description; ?></label>
                                            <?php if ( ! empty( $menu_locations[ $location ] ) && $menu_locations[ $location ] !== $nav_menu_selected_id ) : ?>
                                                <span class="theme-location-set">
                                                <?php
                                                    printf(
                                                        /* translators: %s: Menu name. */
                                                        _x( '(Currently set to: %s)', 'menu location' ),
                                                        wp_get_nav_menu_object( $menu_locations[ $location ] )->name
                                                    );
                                                ?>
                                                </span>
                                            <?php endif; ?>
                                        </div>
                                    <?php endforeach; ?>
                                </fieldset>

                            <?php endif; ?>

This line in particular:
wp_get_nav_menu_object( $menu_locations[ $location ] )->name

Any ideas?

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