Hi,
the two errors can also just be ignored. The functionality isn't needed to qluman-qt but if you want to get rid of them then your solution is fine.
Next Problem: Qluman does not see cl-head on my gateway or let me enter its ISP at192.168.0.200
What do you mean by "not see cl-head"?
Did you create a new certificate on cl-head as described in the docs? When you add that certificate in qluman-qt make sure the IP field is filled in correctly, to 192.168.0.200 I assume from your mail. Check that the IP shows in the Connect Cluster dialog. If not click the Edit button and add the right IP.
Make sure that IP is reachable from your laptop and the firewall doesn't block port 6001.
Hope that helps. Goswin von Brederlow