I'm the main user and I can't log into my account.

I can see the importance of logging in to your account, @9130. I'm here to help ensure you're able to log in to your QuickBooks account.

One of the reasons for the sudden changes in the program is the cache piled up on your browser. To isolate this, let's use a private browser to access your QuickBooks account. This doesn't retain local files, so this helps rule out the possibility of a webpage issue.

Here are the keyboard shortcuts:

• For Firefox, press Ctrl + Shift + P
• For Chrome, press Ctrl + Shift + N
• For Safari, hold down Command + Shift + N

From there, try to login to your QuickBooks account and ensure your internet connection is fine. If this works, you’ll need to clear the browser's cache. By doing this, it’ll remove the built-up cache in your default browser, so you can start with a clean slate. You can also use other supported browsers as alternatives.

If the issue persists, feel free to read the Get help if you can't sign in to your account article for more information. This is a scenario-based troubleshooting guide to help resolve your login issues.

If you need to change your user ID, password, email address, or phone number, refer to this link for the complete steps: Update or change your Intuit Account sign-in information.

I'm just one click away if you need anything else to run your business in QBO. I'll be here to ensure your success. Have a great day ahead.