Hello @JeffinPTC,
Thank you for reaching out to the Community and telling us about your issue, though I apologize that you are experiencing this. Before you begin any troubleshooting attempts, we first advise saving a backup. Then, I suggest that you please deactivate the new account that was created and then delete it. Please, follow the steps found in this support article to deactivate. Once deactivated, right-click the new account name and select Edit/Delete account and click Delete Account on the bottom left. Follow the prompts to complete the deletion of the account. Once it has been deleted, attempt to reconnect the original account through Add Account, by navigating to Tools > Add Account..., search for your Financial Institution name, and follow the prompts to connect. Once your account has been found, be sure to link them to the existing account(s) you have already set up in Quicken. I hope this helps!
Thanks for the update! Glad to hear your issue has been resolved. 🙂