Since you're unable to subscribe to QuickBooks Online (QBO), @oudatco, let's perform browser troubleshooting to help you activate QuickBooks.
First, ensure that your billing information is up-to-date and valid to subscribe successfully. If you still can't, let's clear your regular browser's cache to remove the excessive webpage data that's maybe causing the issue.
Otherwise, you can use other supported browsers.
Once you've subscribed, check this resource to help you get familiar with QBO and its features: Get Started with QBO.
We're always here to help if you have further concerns about subscribing to QuickBooks.
