Everything looks good from here. Remember that you have to install the extension in the domain name you set in the license. If it's a subdomain or a different domain update the license with to include them. If the problem persists let us know.
Is not necessary to add subdirectories like jomsocial.com/staging.
Please check if the domain where you are trying to install the extension is listed in that box. If the domain is included, check if you are using latest iJoomla Installer version (v1.0.3). If it's ok too please open a new thread on this forum and grant us J! backend access:
Hi Ricardo
I actually got a reply on this last night fromPaul - the fix was acurually a Lower case letter
Administrator
Thank you received 451
Hi Tim,
In the installed domains you have used uppercase J which was the cause of the license error. I have updated this for you and the installation completed without error
Paul Smith
Jomsocial support & operations management