SYMPTOMS
I get following message when I try to make any modifications in E-shop module through Sitebuilder wizard: "
Please specify the payment beneficiary".
CAUSE
This message means that payment system is enabled but required fields are empty. The thing is that in 4.0 version it was possible to enable payment system without filling necessary fields. In current version necessary fields are required to be filled.
RESOLUTION
Fill required fields in '
Payment Systems' tab for E-shop module or disable appropriate payment system if you do not really need it.