My notifcations and shortcodes dont seem to be working

Hi Everyone,

So a while back I posted about my notifications not working, I thought I had it fixed but it turns out I didn't.

I'm not really sure what is going. Firstly, no confirmation emails or notification emails were being sent. Then I clicked 'payment required from yes to no. After that notifications and confirmation emails started sending. So I clicked it back on, but then I noticed that my paypal button or shortcode isnt working(now I'm not sure if it had already stop working before I clicked a few things.)

My paypal settings seem to be the same as before.

Anyone know what I can do?

Thanks in advance for your help.