Create Content broken on latest version of WP

When you click on the create content button the entire page goes blank. If you open the source code on the blank page these are the final lines:

<div class=”submitbox”>
<div id=”wp-link-cancel”>
Cancel
</div>
<div id=”wp-link-update”>

<b>Fatal error</b>: Call to undefined function submit_button() in <b>C:\inetpub\www.juliewatsonstyle.com\wwwroot\blog\wp-admin\includes\internal-linking.php</b> on line <b>118</b>