Dear Pierre,
Just to clarify any miss-understanding here;
I informed you that your current installation is based on 1.00.91, which is not yet supported by the B1H 9.1 PL05. B1H 9.1 PL05 actually support HANA rev74.3.
The HANA reversion 1.00.85.1, will be released for B1H 9.1 PL06 hopefully soon. The HANA revision 1.00.91 might work for PL06 and might not. You should really consider the exact HANA revision we certify and support for each specific B1H 9.0/9.1 PLxx.
I hope this was clear enough.
Kindly,
Mostafa