Allow me to help you with this, JRIVERA1.

Let's perform some basic troubleshooting to isolate this issue with uploading QuickBooks Online data. There are times when a browser's cache becomes full or damaged. When this happens, issues like this can occur.

First, log in to your QBO account using an incognito or private browser. Since this doesn't store data in the cache, it the best place to isolate browser issues. Kindly use either of the following shortcut keys:
 

• Google Chrome, press CTRL  + Shift + N
• Mozilla Firefox: press CTRL  + Shift + P
• Internet Explorer: press CTRL  + Shift + P
• Safari: press Command + Shift + N

If you're able to upload the data successfully, you may want to clear the browsing history of your regular web browser. This will remove previously-stored browsing data that might have caused the issue. Otherwise, you can try using other supported browsers to be thorough.

To help you with the future task and tips when using QBO, you might want to visit our Help Articles.

Get back to me if you need help with uploading files or something else. I'd be happy to assist. Enjoy the rest of the day!