I can see your frustration about the error you encountered, @info11. Let's resolve the issue so you can pay your subscription successfully in QuickBooks Online.
We log in using a private browser and update and pay your subscription there.
Here are the shortcuts to incognito browsers:
Google Chrome: press Ctrl + Shift + N
Microsoft Edge: press Ctrl + Shift + N
Firefox: press Shift + CTRL + P
If it works, we can clear the cache to lessen issues that arise when using QuickBooks since it can interfere and result in missing tabs and feature errors.