Failed to launch error when using CC

Sorry I’m not sure if I can post here. I didn’t try Sims 4 today but Sims 3 wouldn’t launch either. It was fine the night before and no windows updates between. I did try everything except repairing. I get error that it’s on our end try again later or sims is already running. 

puzzlezaddict​ 

Referring to you'r first reply.

No need for that :) 
After an update the mods/scripts is turned off. So i already had the game opened, to turn the mods on again, after i did that the game won't launch. 
But i read a lot of comment from people saying that the game aren't working correctly  without mods either. 
EA has announced that their aware of the new update causing problems, and there will be another update within 15 hours. 

rynlove​  The lastcrash file isn't going to be useful to me because most of it is indecipherable to anyone outside EA.  But the "failed to launch game" error can happen after the game crashes (or doesn't start) if you don't also restart your computer before trying again.  So it's possible you found the cc folder that was the original problem, but removing it again didn't work because you never restarted.

Your dxdiag shows that your graphics driver is very old, and Intel does offer a newer one for your processor and graphics chip:

https://www.intel.com/content/www/us/en/products/sku/65719/intel-core-i73770-processor-8m-cache-up-to-3-90-ghz/downloads.html

I would suggest installing it even if the game is working without updating.  Run the installer as an admin: right-click the download and select "Run as administrator."  Restart afterwards and before trying to play.

CBachmann1​  Please try the clean folder in my first reply.

My Game does exactly the same. It seems like no one can play :) ..

Many people are saying that their game crashes, also those playing without CC/mods. 
The new update has completely ruined the entire game.
EA is aware of the problem and is currently trying to fix it. We can't do anything but wait for EA to come up with another update 

My game launch once after the update finished (without cc and mods) and isn't launching at all with mods and cc! It has a error message popping up saying "An error on our end caused the launch to fail. Try again a little later." 

It appears to be creating a lastCrash file when this happens, if that information is helpful. I'm assuming it's opening extremely briefly and then crashing before showing me the pop-up.

Also, here's the dxdiag if still needed.

I tried the first thing and it worked. It ran fine, so I slowly added back folders and started the game to see if I could find an issue. I thought I did because I found two folders of cc that were preventing it from launching, however it suddenly went back to the "Failed to launch game" pop up so I'm not so sure what's going on with it.

Same... tried to launch the game several times today, it always ended up back i the EA launcher without any error message... will try it without mods tomorrow, to late over here (1:30 AM) to give it another try,

rynlove​  If you haven't already, please try playing in a clean user folder.  Move the entire Sims 4 folder out of Documents > Electronic Arts and onto your desktop.  When you launch the game, if it launches, a clean folder will spawn with no content.  (Your saves and other content will be intact in the folder you've moved but temporarily unread by the game.)  Don't add anything to the new folder yet; just start a new save and see how it runs.

If this doesn't or didn't help, please provide a dxdiag.  Click Windows key-R, enter dxdiag in the run box, wait for the scan to finish, click "Save all information," and save the file to your desktop.  From there, you can attach it to a reply using the paper clip (Attachment) icon included with the other formatting buttons.