Catchable fatal error

[Guest]

Have installed 3.5 and am getting the following error

 

Catchable fatal error: Object of class box could not be converted to string in W:\www\mystore\admin\includes\functions\html_output.php on line 291

 

This is line 291:

if (empty($default) && isset($GLOBALS[$name])) $default = stripslashes($GLOBALS[$name]);

 

Any ideas guys and

 

I have chemos Ultimate SEO but when I run submit the query to sitemap generator I get the following (samples):

 

http://localhost/mystore/ssl_check.php --> 2008-05-24T15:46:49-08:00

http://localhost/mystore/tell_a_friend.php --> 2008-05-24T15:46:49-08:00

http://localhost/mystore/wpcallback.php --> 2008-05-24T15:46:49-08:00

40 total files

Creating products sitemap.

Product URL --> Date And Time Last Modified

http://localhost/mystore/product_info.php?products_id=1 --> 2008-06-08 17:27:11

http://localhost/mystore/product_info.php?products_id=3 --> 0000-00-00 00:00:00

http://localhost/mystore/product_info.php?products_id=4 --> 0000-00-00 00:00:00

 

and

 

Creating categories sitemap.

Category ID --> URL

9088 --> http://localhost/mystore/index.php?cPath=9088&page=1

9088 --> http://localhost/mystore/index.php?cPath=9088&page=2

9088 --> http://localhost/mystore/index.php?cPath=9088&page=3

47 --> http://localhost/mystore/index.php?cPath=218_47&page=1

201 --> http://localhost/mystore/index.php?cPath=218_201&page=1

201 --> http://localhost/mystore/index.php?cPath=218_201&page=2

100112 --> http://localhost/mystore/index.php?cPath=2...0112&page=1

100113 --> http://localhost/mystore/index.php?cPath=2...0113&page=1

100114 --> http://localhost/mystore/index.php?cPath=2...0114&page=1

100321 --> http://localhost/mystore/index.php?cPath=9...0321&page=1

100321 --> http://localhost/mystore/index.php?cPath=9...0321&page=2

100321 --> http://localhost/mystore/index.php?cPath=9...0321&page=3

 

This is a web address http://localhost/mystore/index.php?cName=f...acc78n50hb74ni5

 

Any help greatly appreciated