Thank you for reaching out to the Community. You may be experiencing browser issues. Let me help you resolve it by performing some troubleshooting steps.
Let's start by accessing QuickBooks Online through a private or incognito window. This helps us determine if it's a web issue or not.
Here's how to access incognito mode in some of the most commonly used browsers:
Google Chrome: Ctrl + Shift + N
Internet Explorer: Ctrl + Shift + P
Safari: Command + Option + P
Mozilla Firefox: Ctrl + Shift + P
If the steps above work, I suggest clearing your browser's cache to boost browser-related issues. Some stored data on your browser can impact the data being transmitted, thus causing some unusual responses. On the other hand, you can also use supported browsers as alternatives.