Problem with new license (SOLVED)

I bought krpano standard license for two linux servers.
For the first linux server I've register using GUI and using the droplet the virtual tour are without "demo version".
For the second server I've register from command line (krpanotools register CODE) but the virtual tours generated by command line still has "demo version"
I don't undertstand which is my fault?
Anyone could help me please?

Searching the forum it seems that older versions use a separate license file but I guess newer one does not!
It's very strange behaviour : krpanotools register show tell me that I'm using a register version but Demo still appear...
Hope someone could help me

I've made some check, I hope this help to solve my problem.
The command will be launch by php script :

$cmd = "./krpanotools makepano -config=template/myconfig.config ";
$cmd .= " ".$img_full_path;
$results = shell_exec($cmd);

Doing this Demo watermark still appears.

Trying the same directly on the shell it runs well producing a virtual tour without demo watermark as expected.
This is making me mad!

Finally I've found the solution!
The license code must be register with the user that runs the script!
If, for example, you register the license as root and then you log in with another user krpanotools doesn't recognize the license code!
Hope this could be usefull for someone else!