Export Problem

Hello I’m trying to do an export of garyengbergoutdoors.com because I’m building an updated subdomain. The current site is running very old WP version 2.1, and when I try to export, I get the following error.

No webpage was found for the web address: https://www.garyengbergoutdoors.com/blog/wp-admin/export.php?author=all&submit=Download+Export+File+%C2%BB&download=true
Error 6 (net::ERR_FILE_NOT_FOUND): The file or directory could not be found.

I know I could try doing an update before doing the export, but I am concerned it will not work correctly and I don’t want to have the live site not functioning correctly.

Thank you in advance for any help you have to offer with this!