HTTP error 500

[szabep]

Hello
I did everything as you wrote in the readme.
I got http 500 error.
What could go wrong?

[eykchan]

You need to extract the entire google-api-php-client directory, not just the vendor folder. Within the vendor folder, there is code that reference the src directory. Once you extract the entire directory, you will need to update plugin.php so it retrieves autoload.php from the correct directory.