Getting Details From Database

I have modified this so it includes an event section so that when a new guest is added they are invited to either Both or Evening event.

What’s happening is when I add a new guest as Evening the details are being saved in the database but when I go back to view the record it’s putting it back to “Both”.

Can someone tell me where to look for the RSVP Response so that when you go back into the user it beings up whatever response is being made either none, yes or no I imagine this would be a sql query but I am completely stumped.

https://www.ads-software.com/plugins/rsvp/