Hello Stephan,
With HANA Revision 93 you should use OpInt 1.0 SPS04 and not SPS09. In release notes you will find the compatibility information. But now since you have already installed OpInt SPS09, there would not be any option to uninstall or install a lower version (i.e. SPS04). I am afraid you have to reset your HANA server installation. For HANA Studio you can always uninstall the old and install the new plugins again.
Regards,
Archana