Hello Marcel,
you need to check why the kernel exited.
For this logfile
- knldiag (for MaxDB Version lower than 7.7 ) at /sapdb/data/wrk/<SID>
- or KnlMsg (for MaxDB Version 7.7. or higher) at /sapdb/<SID>/data/wrk/<SID>
needs to be checked.
You may add it here to this conversation.
Regards Balázs