If you're not sure, go to the Java home page and click the big green button.
That should give you the latest version and/or upgrade your current version.
If you just want to check first, go to this page to verify your version (again, big green button).
If it's a brand new laptop that you haven't been using on-line much, then yes, it'll need to have the latest version of Java installed.
If it's not your version of Java that's the problem, then there isn't much else that I can think of that might be blocking you.
(Note: Java installation will probably require re-start)