Correlation Id

Dear respected Jasmine Tan3,

Good day! Thank you for posting to Microsoft Community. We are happy to help you.

I’m sorry you’re having a problem but based on your description we can work together to resolve it.

For the situation you encountered, we deeply understand the inconvenience caused and apologize for it.

As per your description, firstly try go to Windows settings>search Account>"Access Work or School">check if you can see your business account in "Access Work or School". If you don't see it, please select Connect and add your business account.

If you can see it, please select it and select Disconnect. After that, please click "Connect" and log into your account again.

Note: Please restart your pc and then sign-in Office app again to check the outcomes.

Also, you can uninstall Office 365 completely by using Microsoft Support and Recovery Assistant (SaRA) as uninstalling Office through Control Panel > Programs & Features would keep some preferences for next installation.
Then re-install Office.

If above doesn't work from your side, then I think this issue might be raised by your local environment (Settings, Registry).

Given this situation, Maybe the local settings had affected the application. Thus, we would like you to check whether the issue is related to your user profile. In this situation, we suggest you Create a new user account under your Windows(for test purpose). See if it still alerts you with the same error message. It is worth trying because it will help you narrow down whether the issue is caused by a specific corrupted user profile.

We appreciate your understanding that sometimes the initial suggestions may not resolve the problem very soon. However, we can work together to narrow down and resolve the situation. So, please kindly provide more information below to let us work further.

1. The screenshot of the subscriptions page “Office 365”: https://portal.office.com/account/#subscriptions 
2. The screenshot of full error message.

3.Can you recall when this behavior starts e.g., after Office update or Windows OS.

Please understand that our initial reply may not always immediately resolve the issue. However, with your help and more detailed information, we can work together to find a solution.

We thank you for your patience and understanding and thank you for your time and cooperation.

Sincerely

Waqas Muhammad