You've mentioned clearing your cache, and it can indeed be an issue with the account itself. If you haven't yet, I recommend using a different supported browser and see if the same problem occurs, Brandon.
Check this link to learn about system requirements and supported browsers for QuickBooks Online.
Did you send the invoice reminders manually one by one? If so, you can send them by batch and see if it works.
Here's how:
- From the left menu, hover your mouse over My Apps.
- Choose Sales & Get paid.
- Select Invoices.
- Check the boxes next to the invoices you want to send reminders for.
- Click on the Batch Actions dropdown and select Send Reminder.
- Review the selected invoices and confirm the reminders to send them out.
If the issue persists, I recommend reaching out to our Live support team to help you check further the cause of getting a blank screen even after clearing the cache. Follow the steps below:
- Click the Help (?) icon.
- Navigate to the Assistant.
- Enter a question or topic you need help with.
- Respond until you reach the option to chat with our Live support team.
Be sure to review their support hours to know when agents are available for assistance.
Feel free to drop by if you have further questions or updates.