Digital download from Amazon + Game Disc issues

Could you post the exact error message ? Do you have any custom content or Store content installed ?

I'm having this same problem too. I downloaded Late Night from Amazon.com last year, installed it and it worked fine. I uninstalled Sims 3 and successfully reinstalled the base game and Ambitions but for whatever reason whenever I try to open it now it says "No game disc found! Please insert The Sims 3 Late Night disc before proceeding." I am extremely unhappy because I cannot play at all and I've already uninstalled and installed the game and have a family going already. Please, tell me what to do.

I would get in touch with a customer support game advisor. Might help if they give you a new key.

Please do let us know if that helps.

Game advisors can be found through live chat.

1. https://help.ea.com/en/contact-us/ 
2. Set your language to US at the bottom
3. Click on Contact a game advisor 
4. Describe your issue with a few words
5. Click on Find a Solution
6. Select Product: ex: The Sims 3 or Origin
7. Select Issue Type: ex: Billing/Purchasing or Account Management
8. Select Platform: PC
9. Click Find solution
10. Scroll down and click I still need help
11. Click Chat Now to chat with a Game Advisor
    

With Pics here: http://sims3.crinrict.com/en/2012/10/how-to-contact-ea.html