Problem starting MinimServer

[Tumpom]

Hi,

Looking for some help to start Minimserver after installing it on Lubuntu with Java apparently headless:

When using the command "../startc" I get the message

"starting MinimServer[...]"
"Enter command (? for Help):"
"Enter content directory, or null to continue"

And then an error message whatever I try to enter for instance:

"MinimServer error: now stopped...."

Thanks a lot there for any enlightment,
Frank