Classic LifeStyle Theme Menus not linking after upgrade

[kblackstone]

Hello! I recently upgraded all my sites to a new server and did all the WordPress and Plugin upgrades, etc, etc. I got everything working except for two sites who's menus are broken. I realized only these two were still in Classic themes and not the Child themes format. I played around with the permalinks of one and it fixed it but wont work on the other:
www.raysisterpublishing.com/music
The main menu is a list of pages, displayed by the Lifestyle theme code found in Header.php shown below. You'll see that the first 3 pages give a "Multiple Choices" error, while the last two pages in the menu link correctly. I'm baffled.

<div id="navbar">

    <div id="navbarleft">
        <ul id="nav">
            <li><a href="<?php echo get_option('home'); ?>"><?php _e("Home", 'studiopress'); ?></a></li>
            <?php wp_list_pages('title_li=&depth=4&sort_column=menu_order'); ?>
        </ul>
    </div>
    
    <div id="navbarright">
        <form id="searchform" method="get" action="<?php echo get_option('home') ?>/">
        <input type="text" value="<?php _e("Search this website...", 'studiopress'); ?>" name="s" id="searchbox" onfocus="if (this.value == '<?php _e("Search this website...", 'studiopress'); ?>') {this.value = '';}" onblur="if (this.value == '') {this.value = '<?php _e("Search this website...", 'studiopress'); ?>';}" />
        <input type="submit" id="searchsubmit" value="<?php _e("GO", 'studiopress'); ?>" /></form>
    </div>
    
</div>

Any help would be appreciated. When I get a chance I'm going to update the theme to the new LifeStyle child theme, but for now, I just want it to work as is.
Thanks so much!