I imported some contacts and bank statements to odoo 9.
Now I'm trying to Reconcile (see link to picture below) but I get this error message...

http://dl.dropbox.com/u/49702772/Selection_004.jpg

Odoo Warning - Validation Error

The operation cannot be completed, probably due to the following:

- deletion: you may be trying to delete a record while other records still reference it

- creation/update: a mandatory field is not correctly set

[object with reference: account_id - account.id]

It seems that I'm missing a step here. I assume the account_id that is missing is the "false" text in picture? To what account is this referring to?