Supposedly you'll have an option already to pay the estimated taxes from the 2nd quarter since the due date was June 15, 2021.
However, to check if the issue is browser-related, let's try some basic troubleshooting procedures. The stored cache can cause unusual browser behavior.
Let's start by logging in to your QuickBooks Self-employed company on a private page. Here’s how to open an incognito window in all supported browsers:
Press Ctrl + Shift + P for Internet Explorer or Firefox.