Trying to get property and Cannot modify header information Errors

Hi there,

Bought new licences yesterday – on my test website and after upgrading from V1 to V2 and getting through it. On the Listima Theme.

However – on the add listing page I am getting the following. I see some of these errrors referenced in other posts when I searched the forums but the replies/fixes are marked as private:

The page I am hitting is:
http://www.preschools.ie/add-listing/?listing_type=gd_place

And you will see the errors:

Notice: Trying to get property ‘public’ of non-object in /home/childcar/preschools.ie/wp-includes/class-wp.php on line 233

Notice: Trying to get property ‘protected’ of non-object in /home/childcar/preschools.ie/wp-includes/class-wp.php on line 233

Notice: Trying to get property ‘private’ of non-object in /home/childcar/preschools.ie/wp-includes/class-wp.php on line 234

Notice: Trying to get property ‘exclude_from_search’ of non-object in /home/childcar/preschools.ie/wp-includes/class-wp.php on line 234

Notice: Trying to get property ‘public’ of non-object in /home/childcar/preschools.ie/wp-includes/class-wp-query.php on line 3054

Notice: Trying to get property ‘protected’ of non-object in /home/childcar/preschools.ie/wp-includes/class-wp-query.php on line 3060

Notice: Trying to get property ‘private’ of non-object in /home/childcar/preschools.ie/wp-includes/class-wp-query.php on line 3070

Warning: Cannot modify header information – headers already sent by (output started at /home/childcar/preschools.ie/wp-includes/class-wp.php:233) in /home/childcar/preschools.ie/wp-includes/pluggable.php on line 1251

Warning: Cannot modify header information – headers already sent by (output started at /home/childcar/preschools.ie/wp-includes/class-wp.php:233) in /home/childcar/preschools.ie/wp-includes/pluggable.php on line 1254

Thanks in advance

Adrian