Hi,
I dont see this CL_IM_SIC_NOTIFY_ILN.(What is this class or interface)
I can see that the interface was enhance in the below support pack in your system.
SAPK-731BCINSAPBASIS SAP_BASIS 731 Update: Main objects (CLAS, INTF) SAPBASISUSER 22.02.2013 Delivery Transport Released
SAPKB70005 Basis Support Package 05 for 7.00 SAP 23.11.2005 Delivery Transport Released
As you were at BI 3.5 in your system you might find more entry.
Was this enhanced in your system CL_IM_SIC_NOTIFY_ILN?. Check in service market place and see if any developer got this object registered to enhance it.
also login in the system and go in se03 -> select Search for Objects in Requests/Tasks
Give the below entry and select both check box modified and execute.
R3TR INTF IF_EX_ADDRESS_UPDATE
And run it.
See if you get any transport other than support pack details you get.
The next question you need to check with the basis team was there any of the above object poped in SPAU or SPDD.
If SPAU then you can try to reset that object and see it your system works.
If in SPDD the team should already have reseted it.
Thanks
Rishi Abrol