Solution : https://service.sap.com/sap/support/notes/675432 (SAP Service marketplace login required)
Key words :
run time exception, portal throws, entry point, merge id 10, merge id 20, merge id 30, enterprise portal 6, latest hotfix, -> folder 11 -> folder2, -> folder 22 -> folder3
Related Notes :
| 678795 | EP6 Central Note. Installing Patch 2 for EP 6.0 SP2 |