[Plugin: WP Custom Fields Search] Search Post Title shows everything

Hi,

Great plug-in! So thank you kindly for your offering.

I’ve set the plug-in up and I’m trying to do a list of post titles, however, it seems to be showing posts, pages and even my image names!!!

Is there anyway I can alter the code just to show post titles only?

Many thanks

https://www.ads-software.com/extend/plugins/wp-custom-fields-search/