DUAL Pricing v2

[craftzombie]

1054 Unknown column 'c.COWOA_account' in 'field list'
in:
[select c.customers_id, c.customers_lastname, c.customers_firstname, c.customers_email_address, c.customers_group_pricing, a.entry_country_id, a.entry_company, ci.customers_info_date_of_last_logon, ci.customers_info_date_account_created , c.customers_telephone, a.entry_company, a.entry_street_address, a.entry_city, a.entry_postcode, c.customers_authorization, c.customers_referral, c.COWOA_account from customers c left join customers_info ci on c.customers_id= ci.customers_info_id left join address_book a on c.customers_id = a.customers_id and c.customers_default_address_id = a.address_book_id order by ci.customers_info_date_account_created DESC limit 0, 20]
If you were entering information, press the BACK button in your browser and re-check the information you had entered to be sure you left no blank fields.

any clue how to fix this?

Read through this thread and find out which download does not contain the COWOA mod with it and then re-install. There are two new versions of Dual Pricing, one with the COWOA mod included. You want the one without it. I just can remember whose version does not have it. It is somewhere on this thread though.