Re: Unknown Failure

@SativaSunshinee  Please uninstall and reinstall only the Parenthood pack.  It has its own folder in [install location]\The Sims 4, here by default:

C:\Program Files (x86)\Steam\steamapps\common\The Sims 4

Parenthood is GP05.  You can simply delete the folder.

If that doesn't help, please list the items you're having trouble with, or at least a few of them, if it's not every item from the pack.  Please also include screenshots of the two errors, for reference—if this turns out to be a Steam or EA side issue, screenshots may help the investigation.