After seeing your landing page I finally understand what a landing page should be.
Over the years I have run a few A/B tests on the landing page. I tried some variations I thought MUST improve the conversion rate. However, this one, which is basically the original one, is still the best performer.
If it ain't broke.
> Application error: a client-side exception has occurred (see the browser console for more information).
I'm on phone so can't check the error right now.