I am unable to send invoices it said, halo succeeded, and then something went wrong?

Thanks for posting your concern in this forum, Ryan. I'm here to help you perform some troubleshooting steps to help resolve the issue you're experiencing with your invoices.

When your browser gets overloaded with data, it can cause issues such as preventing you from sending invoices to your customers. To address this, we can troubleshoot by accessing your account through a private window. This will help us determine if this issue related to your browser’s cache or cookies.

To open one, here are the keyboard shortcuts you can use: 

• Google Chrome: Ctrl + Shift + N
• Mozilla Firefox: Ctrl + Shift + P
• Safari: Command + Option + P
• Microsoft Edge: Ctrl + Shift + N

Once there, generate and send new invoice to your customer. If that works, please clear your browser's cache for a fresh start. Additionally, use the updated version of your browser to make most out of QuickBooks.

For more guidance on personalizing sales forms in QuickBooks, you can check out this helpful article: Customize invoices, estimates, and sales receipts in QuickBooks Online.

If you have need further assistance with sending invoices in QuickBooks, please don't hesitate to reach out to this forum. I'm here to help.