Google Drive API Daily Limit Exceeded

I've integrated googl drive into my webapp. This is the error.

{ "error": { "errors": [ { "domain": "usageLimits", "reason": "dailyLimitExceededUnreg", "message": "Daily Limit for Unauthenticated Use Exceeded. Continued use requires signup.", "extendedHelp": "https://code.google.com/apis/console" } ], "code": 403, "message": "Daily Limit for Unauthenticated Use Exceeded. Continued use requires signup." } }

Each time i resolve this error it gets back again. To resolve it i get new api token for it from google console.

This is how im getting files/directories.

        $drive_files = Cache::rememberForever('files',  function()  {
            return $this->disk->allFiles();
        });

        $directories = Cache::rememberForever('directories',  function()  {
            return $this->disk->allDirectories();
        });

I am using nao-pon/flysystem-google-drive package to do this all.

How can i resolve this issue permanently? How can i increase quota so limit doesnt exceed ?