"500 Internal server error" on EP 730 after Het Sys Copy

[robertom]

We did an Het. System copy from ABC production system (Linux/oracle) to XYZ (Windows 2008 R2/ASE 16).
XYZ is a new, fresh installation
ABC is a Java Only system, Nw 7.3, used as Enterprise Portal . UME is database, not Abap.

Both the export and the import phases ended successfully and on the MMC on the target system we see the XYZ instance green.

The std.server0.out does not indicate any error. The same the stdserver1.out.
Since on the source system there are two nodes, also the target system we found two nodes (we let the SWPM to determine automatically the number of server nodes during the installation)

We are able to logon to the NWA and we applied already the new sap license.

But if we try to access the portal application we get the error "500 Internal server error"

Kernel in use is 722_EXT_REL, pl. 200

In LogViever we see:

"Could not retrieve the AliasService service, please validate that all portal services and components are deployed and run correctly"

"Cannot process an HTTP request to servlet [gateway] in [irj] web application.
For more details on the problem please check traces searching by logId: C0000AF004EA00330000000600002340"

Please help to clarify why the Sap EP is not accessibleregards