Oh sorry, for that stupid mistake of myself. I was already happy that this really could be the mistake, but still got the same error listed above with the right spelling...
To go sure, i started the server in daemon-mode on my desktop win-os:
"sesame -daemon -server HOST"
it works on the windows machine without a gui greatly
when i type the same order into the embedded linux os:
HDD-LED blinking 2-3 mins
then Killed
and in the log-file:
kernel: __alloc_pages: 0-order allocation failed (gfp=0x1d2/0)
kernel: VM: killing process sh
I'm asking the nas-manufacturer for support too, to see if he knows a solution...
Thank you for your kind help and for your patience..

Greetings,
Dirk