Smmzappelli Can you load a different household in this save? Use Load Game rather than Resume, and choose a household you've never played before. If that doesn't work, try loading a new save.
If you can't start a new save either, 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.
If the new save works, open Documents > Electronic Arts > The Sims 4 and delete any lastexception files you find. Try again to load your main household in your main save, and see whether you get another LE. If you do, open the file, delete the first line of text, and attach it to a reply here, as described above.