Save Oauth2 Outgoing (SMTP) Authentication changes caused the error

ait1

My site info:

My action:
We are configuring the oauth2, it caused the below error message when I submit the outgoing (SMTP) changes, and the authentication as the same as Remote mailbox.

PHP Fatal error: Uncaught Error: Call to undefined method osTicket\Mail\NoAuthCredentials::getAccessToken() in /var/www/html/ost/include/class.email.php:557\nStack trace:\n#0

Please advise. Thank you.

KevinTheJedi

ait1

In addition to what @TonyO said, you also need to fix your Helpdesk Name and Helpdesk URL. I don't know how you were able to accomplish them being totally blank but they are required. We use them in email templates, OAuth2 config, etc.

Cheers.

TonyO

Refer to this post. It may be the same issue.
If not, please post a screenshot of the IdP config from Remote Mailbox and the Token tab.

ait1

KevinTheJedi I just hide them, but I did fill them up. Thank you