Cron error in Wordpress woocommerce store

Good day,
I am looking for someone to fix an issue in our wordpress store. We have this error:

There was a problem spawning a call to the WP-Cron system on your site. This means WP-Cron events on your site may not work. The problem was:
Unexpected HTTP response code: 403

The help link suggests:
Unexpected HTTP response code: 401 or 403
This means an access control restriction such as BasicAuth, a firewall, a security or privacy plugin, some form of password protection, or an .htaccess rule is preventing your server from accessing wp-cron.php.

I have tried removing the security plugins, checking the htaccess file and other basic checks but cant find any issues.
If you have experience of this issue and can fix this issue quickly please place a bid. We will have future projects for the successful freelancer.

Thanks