Can't create new contribution page

This happens on dmaster.demo.civicrm.org with CiviRules disabled (as I my understanding is that is not yet compatible with 4.7)

If you try to add a contribution page by entering just a conforming title, selectinig a financial type and clicking on Continue it fails.

The message is:
Sorry but we are not able to provide this at the moment.
DB Error: no such field
Error details:
Database Error Code: Unknown column 'title_en_AU' in 'field list', 1054

Additional Details:
Array
(
[callback] => Array
(
[0] => CRM_Core_Error
[1] => handle
)

[code] => -19
[message] => DB Error: no such field
[mode] => 16
[debug_info] => INSERT INTO civicrm_contribution_page_en_GB (title , intro_text , financial_type_id , is_credit_card_only , is_confirm_enabled , goal_amount , is_active , footer_text , start_date , end_date , created_id , created_date , currency , campaign_id , is_share ) VALUES ('test to see if I create one' , NULL , 1 , 0 , 1 , NULL , 1 , NULL , 20160301060900 , NULL , 202 , 20160301061932 , 'GBP' , NULL , 0 ) [nativecode=1054 ** Unknown column 'title_en_AU' in 'field list']
[type] => DB_Error
[user_info] => INSERT INTO civicrm_contribution_page_en_GB (title , intro_text , financial_type_id , is_credit_card_only , is_confirm_enabled , goal_amount , is_active , footer_text , start_date , end_date , created_id , created_date , currency , campaign_id , is_share ) VALUES ('test to see if I create one' , NULL , 1 , 0 , 1 , NULL , 1 , NULL , 20160301060900 , NULL , 202 , 20160301061932 , 'GBP' , NULL , 0 ) [nativecode=1054 ** Unknown column 'title_en_AU' in 'field list']
[to_string] => [db_error: message="DB Error: no such field" code=-19 mode=callback callback=CRM_Core_Error::handle prefix="" info="INSERT INTO civicrm_contribution_page_en_GB (title , intro_text , financial_type_id , is_credit_card_only , is_confirm_enabled , goal_amount , is_active , footer_text , start_date , end_date , created_id , created_date , currency , campaign_id , is_share ) VALUES ('test to see if I create one' , NULL , 1 , 0 , 1 , NULL , 1 , NULL , 20160301060900 , NULL , 202 , 20160301061932 , 'GBP' , NULL , 0 ) [nativecode=1054 ** Unknown column 'title_en_AU' in 'field list']"]
)

This seems like a major error to me, but I could be wrong as one of the extensions may be causing a problem.