Microsoft Credentials

Hi, can someone please help with this. I get this email everyday. I use new Outlook. I have 2 email accounts. 1 hotmail (main) and another outlook (business). I’ve tried all sorts to get the outlook one to sync, however I still get the below message:

It looks like we don't have permission to get email for xxxxxx
Account Status:
The last successful sync was on 12/11/2019 21:45:55 UTC.
How to Fix It
If you're using the new Mail experience in Outlook.com:
• On the toolbar, select the Settings icon, then select View all Outlook settings.
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• Select Sync email to see your Connected accounts.
• Check the details for the connected account that's stopped working and correct the problem.
If you're using the Classic version of Outlook.com:
• On the toolbar, select the Settings icon > Mail > Connected accounts.
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• Check the details for the connected account that's stopped working and correct the problem.
Note: To stop receiving these notifications, please remove or fix the connected account that's not syncing.
Microsoft will never ask for your password over email.
This system notification isn't an email message and you can't reply to it.

Thanks, Russ