Invalid External Authentication.

[1988gadocansey]

Google login is not working. throwing error

Invalid External Authentication.

[CodeMazeBlog]

We updated this article in June, back then, Google changed something regarding external authentication, so the library we used for that had to apply some changes as well. After they applied changes in the lib, I modified the article and everything worked well again. I am not sure what is the issue now, but maybe again Google changed something. I didn't test the code since June.