Fatal error: Uncaught Google\Service\Exception: { "error": { "code": 403, "message": "Requests from referer \u003cempty\u003e are blocked.", "errors": [ { "message": "Requests from referer \u003cempty\u003e are blocked.", "domain": "global", "reason": "forbidden" } ], "status": "PERMISSION_DENIED", "details": [ { "@type": "type.googleapis.com/google.rpc.ErrorInfo", "reason": "API_KEY_HTTP_REFERRER_BLOCKED", "domain": "googleapis.com", "metadata": { "httpReferrer": "\u003cempty\u003e", "consumer": "projects/722369227894", "service": "calendar-json.googleapis.com" } }, { "@type": "type.googleapis.com/google.rpc.LocalizedMessage", "locale": "en-US", "message": "Requests from referer \u003cempty\u003e are blocked." } ] } } in /var/www/calendar/vendor/google/apiclient/src/Http/REST.php:134 Stack trace: #0 /var/www/calendar/vendor/google/apiclient/src/Http/REST.php(107): Google\Http\REST::decodeHttpResponse() #1 [internal function]: Google\Http\REST::doExecute() #2 /var/www/calendar/vendor/google/apiclient/src/Task/Runner.php(187): call_user_func_array() #3 /var/www/calendar/vendor/google/apiclient/src/Http/REST.php(66): Google\Task\Runner->run() #4 /var/www/calendar/vendor/google/apiclient/src/Client.php(969): Google\Http\REST::execute() #5 /var/www/calendar/vendor/google/apiclient/src/Service/Resource.php(248): Google\Client->execute() #6 /var/www/calendar/vendor/google/apiclient-services/src/Calendar/Resource/Events.php(296): Google\Service\Resource->call() #7 /var/www/calendar/view.php(75): Google\Service\Calendar\Resource\Events->listEvents() #8 {main} thrown in /var/www/calendar/vendor/google/apiclient/src/Http/REST.php on line 134