You can re-authenticate the expired integrations when you notice the integrations card with 'Expired' as the status.
Re-authenticate your account by following these steps to complete the integration.
Step 1: Select the Integration card displaying 'Expired.'
Step 2: Select the 'Reconnect' button to re-authenticate the integration. Re-Oauth page appears.
Step 3: Select the 'Reconnect' page.
Step 4: Provide all the credentials and details of the account to complete the authentication.
Check these links for re-authenticating integrations.