hugodiego Hi
As Pankaj mentioned the component doesn't just disappear from your site unless you manually removed it.
We can help to check for you further however you need to renew your Jomsocial membership first as our tech support is available for the active paid members only. Renewing membership also grants you access to our download area again, you will be able to download the latest version of Jomsocial component.
We have a 20%off discount for returning members, please just let us know if you accept and we will send you a coupon code to use.