Dump at ticket creation & display after Solman SP12 upgrade

Hello,

We recently upgraded our Solution Manager 7.1 from SP8 to SP12.

When trying to create or display a standard or specific transaction type normal / urgent change (ZMMJ or ZMHF or SMMJ or SMHF), the following dump appears:

We found the following knowledge article with the same symptom/cause:

https://websmp230.sap-ag.de/sap(bD1lbiZjPTAwMQ==)/bc/bsp/sno/ui_entry/entry.htm?param=69765F6D6F64653D3030312669765F7361706E6F7465735F6E756D6265723D3139363335323326

Then we tried to implement the mentioned SAP Note 1892574 - Wrong Binding CustomerH context node in Charm area but it cannot be implemented in the system.

We performed the manual post actions mentioned in the SAP Note 1892574 but the issue still persists.

Did anyone already encounter this kind of issue?

Thanks and Regards

Louise B.