Warning: mb_convert_encoding() [function.mb-convert-encoding]: Illegal character encoding specified in [path]/includes/functions_vbseo_misc.php on line 41
It means that the mbstring extension in your PHP isn't enabled. This is used for UTF8 characters and non ASCII characters that are more than 8 bit. You should ask your ISP to enable it for you. It is in php.ini (extension=php_mbstring.dll)
