ERP Webshop B2C logon errors

Hi,

We configured a B2C webshop in ERP (ECC6.0) but when we want to create our webshop using the URL http:// : /shopadmin/shopadmin/ init.do?language=

we are having the following errors:

- runtime errors

- contact the administrator.

Our JCO user is having the right authorizations:

- SAP ALL

- SAP NEW

and we defined him as a system user.

Could somebody please advise?

Many thanks in advance,

Yasmine