<br />
<b>Fatal error</b>:  Uncaught Google\Service\Exception: {
  &quot;error&quot;: {
    &quot;code&quot;: 400,
    &quot;message&quot;: &quot;API key not valid. Please pass a valid API key.&quot;,
    &quot;errors&quot;: [
      {
        &quot;message&quot;: &quot;API key not valid. Please pass a valid API key.&quot;,
        &quot;domain&quot;: &quot;global&quot;,
        &quot;reason&quot;: &quot;badRequest&quot;
      }
    ],
    &quot;status&quot;: &quot;INVALID_ARGUMENT&quot;,
    &quot;details&quot;: [
      {
        &quot;@type&quot;: &quot;type.googleapis.com/google.rpc.ErrorInfo&quot;,
        &quot;reason&quot;: &quot;API_KEY_INVALID&quot;,
        &quot;domain&quot;: &quot;googleapis.com&quot;,
        &quot;metadata&quot;: {
          &quot;service&quot;: &quot;books.googleapis.com&quot;
        }
      },
      {
        &quot;@type&quot;: &quot;type.googleapis.com/google.rpc.LocalizedMessage&quot;,
        &quot;locale&quot;: &quot;en-US&quot;,
        &quot;message&quot;: &quot;API key not valid. Please pass a valid API key.&quot;
      }
    ]
  }
}
 in /www/wwwroot/googlehome.winhui.com.cn/vendor/google/apiclient/src/Http/REST.php:134
Stack trace:
#0 /www/wwwroot/googlehome.winhui.com.cn/vendor/google/apiclient/src/Http/REST.php(107): Google\Http\REST::decodeHttpResponse()
#1 [internal function]: Google\Http\REST::doExecute()
#2 /www/wwwroot/googlehome.winhui.com.cn/vendor/google/apiclient/src/Task/Runner.php(187): call_user_func_array()
#3 /www/wwwroot/googlehome.winhui.com.cn/vendor/google/apiclient/src/Http/REST.php(66): Google\Task\Runner-&gt;run()
#4 /www/wwwroot/googlehome.winhui.com.cn/vendor/google/apiclient/src/Client.php(922): Google\Http\REST::execute()
#5 /www/wwwroot/googlehome.winhui.com.cn/vendor/google/apiclient/src/Service/Resource.php(238): Google\Client-&gt;execute()
#6 /www/wwwroot/googlehome.winhui.com.cn/vendor/google/apiclient-services/src/Books/Resource/Volumes.php(86): Google\Service\Resource-&gt;call()
#7 /www/wwwroot/googlehome.winhui.com.cn/index.php(29): Google\Service\Books\Resource\Volumes-&gt;listVolumes()
#8 {main}
  thrown in <b>/www/wwwroot/googlehome.winhui.com.cn/vendor/google/apiclient/src/Http/REST.php</b> on line <b>134</b><br />