I've got your back, and I'll ensure you get past the error message when trying to preview 1099 forms in QuickBooks Online (QBO), sonyap1.

We can log in to your account using an incognito browser. Private browser prevents saving cache and cookies that sometimes cause errors when running frequently visited websites. Here are the useful shortcut keys you can use to access one:

• Ctrl+ Shift + N for Google Chrome
• Ctrl + Shift + P for Mozilla Firefox and Microsoft Edge
• Command + Shift + N for Safari

Once done, try creating and filing 1099s in QuickBooks Online again. If it works, return to your default browser and clear its cache. Every so often the cache becomes overwhelmed with older data which can potentially cause viewing and performance issues. Clearing it will refresh the system, and you'll be able to work with a clean slate. Switching to another compatible one to help rectify the issue.

As always, feel free to read the topics from our help articles in case you need tips and related links while working with QuickBooks in the future.

If you have any further questions regarding processing the 1099, feel free to reach out. I'll be here to help you out. You have a good one.