Dear Michaela,
Thank you for the reply and the screenshot.
As from the screenshot, we can clearly see that the email that you are currently trying to access does not have required license.
So, I would like to suggest the below steps:
- Please check if you have the required license “The latest desktop version of Office”. If yes, **** then you do not need to ask your admin to assign the license to you.
You can check it by clicking the below link:
https://portal.office.com/account/?ref=Harmony#subscriptions

If you don't see "The latest desktop version of Office” then I would recommend you check with your company administrator and help you assign the license to your account.
Moreover, you did mention on the reply that you removed the licenses, did you use the below steps to do that?
If you have the related license, you can also try to remove keychain access by the steps below and in the link:
How to remove Office license files on a Mac - Microsoft Support
1. Download the license removal tool.
- Open the .pkg file from your Mac's Downloads folder.
**Note:**If you get an "unidentified developer" error, try opening the file by holding Control + clicking the file > Open.
- Select Continue and follow the prompts in the setup wizard.
**Caution:**We recommend you double-check that you have the correct account info ready by logging into Office.com/signin and checking for the license you want to activate with.

- When you're ready to complete the license removal, select Install. You may need to enter your Mac's local admin account password.
After the tool successfully removes licenses, select Close.

- Now open any Office app and sign in to activate with the email account associated with your Microsoft 365 for Mac license. If you're troubleshooting an issue, you may need to reinstall Office before signing in.
After you've successfully activated, restart your computer and then you're good to go!
**Note:**If your account has both a Microsoft 365 for Mac license and a one-time purchase associated with it, you'll be prompted to choose which license you want to activate with. We recommend always choosing Microsoft 365 for Mac if available.
- Uninstall the License Removal Tool by dragging the Microsoft_Office_License_Removal file from Finder > Downloads to Trash.
In the meanwhile, if the troubleshooting that I have provided in this reply is helpful then you can also provide your feedback via options below:

Appreciate your understanding and patience.
Sincerely,
AJ RAJ| Microsoft Community Moderator