PHP Error – Uncaught Google_Auth_Exception: Error refreshing the OAuth2 token

  • Hello,

    I installed and configured the Google SMTP plugin. The status is connected, I have updated everything but when I try to send a test email, I get the following error:

    Uncaught Google_Auth_Exception: Error refreshing the OAuth2 token, message: ‘{ “error” : “invalid_request”, “error_description” : “Missing required parameter: refresh_token” }’ in /srv/bindings/51056139c8ec413492a638212ed8ae8a/code/wp-content/plugins/gmail-smtp/google-api-php-client/src/Google/Auth/OAuth2.php:363 Stack trace: #0 /srv/bindings/…

    It used to work perfectly. I did go from php 5.5 to 7, so maybe that’s the reason?

    thanks,

    Mich

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