invalid_client AADSTS7000222: The provided client secret keys for app 'my_app_id' are expired. Visit the Azure portal to create new keys for your app: https://aka.ms/NewClientSecret, or consider using certificate credentials for

So i have a Sharepoint Integration in my Salesforce app, and i had the OAuth-Only Initialization URL working fine, until last week, i'm getting a server error with the message i provided above in the title. I found the app in my Azure environment but i can't see anything related to secret keys or anything in the left menu bar (see the screenshot). Can anyone assist? Thank you!