I have a similar issue, although I made the payment the servers keeps saying:
hoccam:/opt/lsws # /opt/lsws/bin/lswsctrl start
[ERROR] Sorry, your license key has expired!
[ERROR] Failed to start lshttpd!
I tried generating a new license with -r, but no help.
There is a ticket about it which I opened yesterday, but there isnt any answer yet. My server is down for about 2 days.