Sims 3 Launch issues on Windows 10.... Can't install DLC. PLEASE HELP!!!!

I just installed Sims 3 using Origin, and then decided to spend a fair amount of money on 3 DLC's (Pets, Night life, Ambitions), the problem is, they won't install as the game isn't updated.

When I Load up the game launcher, every time I get a script error saying 'An Error has occured in the script on this page'. Error: 'expected identifier, string or number' Code: 0, URL: http://launcher.thesims3.com/launcher/home.html?launcherLocale=en_US&launcherCountry=GB&var=loggedOut.

I click yes to continue running scripts on this page, and proceed to 'game updates' but says I'm unable to connect to EA Download manager!!! I try to Login on the Welcome Tab, but says 'This content cannot be displayed in a frame'

I have uninstalled and reinstalled the game over and over, same with the origin application, still no luck! 

I have the most up to date Java, Adobe Air, Drivers etc... I just can't figure it out. I often have problems with game via origin, I don't understand why. 

Any help would be great. I hope I haven't just spent close to a £60 for bloody nothing!!!