Hello Gabriella Kiss,
You´re right 
I change the value of service/protectedwebmethods parameter in the default profile. I set it to DEFAULT. I restarted the SAP system and now I can get the output of the following command:
sapcontrol -nr 00 -function GetVersionInfo
Thank you very much for your help in this specific issue.
I will answer to Reagan Benjamin in other message!
Kind regards,
samid raif