Hello there, @brandi4.
You can reach the other employer to request the missing 1099. It should be e-file before January 28th, 2020 at 5:00 PM PT so you 1099s can be postmarked to the contractors by January 31, 2020.
You can check this article to have more details about 1099: Prepare and file Federal 1099s using QuickBooks Online.
Please let me know if you have any other concerns in the comment below. I'm always here to help. Have a good one.