Launcher crashes when I open the downloads tab in Sims 3

I've bought several worlds during this summer sale. It's so frustrating  because I can't install them now. Once I click the 'downloads' tab, the launcher crashes and EA app pops up.

There is already a post concerning this issue and this happens to a lot of players: Launcher crashes when I open the downloads tab in Sims 3 | EA Forums - 12167613. 

To those who also have this problem, there is a way to install them: clicking the downloads tab inside the game main menu :

Then u can install your content here:

Once u click the 'install now', the launcher will pop up, but still-- don't click the 'downloads' tab and also 'installed content' tab of the launcher, because then it will still crash. Just wait for a few seconds and when u switch back to the game, the status will change to 'installed'. So u can continue with the next one.

This is just a temporary solution. Hopefully it is helpful. I still hope this issue can be solved as soon as possible.