I believe this is the version. How can I check
I got two error messages and I don't know how to fix. Can someone help me thanks.
Fatal error</b>: Call to undefined function home_url() in <b>/var/www/royalllp_com/public_html/blog/wp-content/themes/twentyten/header.php</b> on line <b>63
Fatal error: Call to undefined function is_multisite() in /var/www/royalllp_com/public_html/blog/wp-admin/admin.php on line 43