I'm now getting a "Odoo Warning" "Integrity Error - duplicate key value violates unique constraint "account_invoice_line_pkey" DETAIL: Key (id)=(46) already exists.
This was when I clicked the "Update" button on a new invoice for Tax. It happened prior when I just tried to Save the Invoice. As far as I can tell looking in the database there shouldn't be any ID=46 already.
Pressing save I get a new error: "wkf_instance_pkey" DETAIL: Key (id)=(43) already exists.
If I press Save again I get the following: "wkf_instance_pkey" DETAIL Key (id)=(44) already exists.
What's going on and how should I get this fixed?