Hi , if you have viewed my previous blog on ,
then when you have installed it , running v9.0 well , happy and then when you test e-commerce payment ... something strange happened , you stuck at Pay Now and can't proceed further ...
and the odoo log file show ... IOError ...
then this may because you have changed the odoo default port 8069 to something else , so you must go to setting , system parameter ( you must activate developer mode ) , so that you can find this ... and create a record as follow , add a parameter key report_url with value http://127.0.0.1:9099(your odoo v9.0. port)
and then retry the Pay Now, it should be able to proceed through payment already !
So Malaysia / Singapore SME , happy Odooing !