LaravelFacebookSdk: Cross-site request forgery validation failed. Required param "state" missing.

I dont know why,but I started getting this issue suddenly.I tried to debug and found in the FacebookRedirectLoginHelper the function validateCsrf() does not get the savedstate $savedState = $this->persistentDataHandler->get('state'); I am not how to resolve this.I tried printing both the $state and $savedState and I get $savedState as null Where am I making a mistake with this?

class FacebookController extends Controller {
public function fbConnect(LaravelFacebookSdk $fb)
{
    // Obtain an access token.
    try {
        $token = $fb
            ->getRedirectLoginHelper()
            ->getAccessToken();
    } catch (Facebook\Exceptions\FacebookSDKException $e) {
        dd($e->getMessage());
    }
    dd($token);
    // Access token will be null if the user denied the request
    // or if someone just hit this URL outside of the OAuth flow.
    if (! $token) {
        // Get the redirect helper
        $helper = $fb->getRedirectLoginHelper();

        if (! $helper->getError()) {
            abort(403, 'Unauthorized action.');
        }

        // User denied the request
        dd(
            $helper->getError(),
            $helper->getErrorCode(),
            $helper->getErrorReason(),
            $helper->getErrorDescription()
        );
    }
  //Long lived token code after this