Let me guide you in solving this error message that you've encountered, @anandmak.
The stored data on your browser will sometimes cause your QuickBooks to behave improperly. Let's try logging in to your QuickBooks account using a private browser.
Please refer to these shortcut keys to open an incognito window in all supported browsers:
- Safari: Command + Shift + N
- Mozilla Firefox or Microsoft Edge: CTRL + Shift + P
- Google Chrome: CTRL + Shift + N
Also, consider using another private browser.
If this works, go back to your regular browser and clear the browser's cache so the system can start fresh.
If you still encounter the same error, I recommend contacting our Quickbooks Online support team to further guide you with the next steps to be taken.
Please let me know if I can be an additional help, I would love to help you further. Take care and stay safe.