Hi!
Thank you for the login details! Once I logged in and clicked on the search settings the following javascript error came up in my dev tools:
Uncaught ReferenceError: tinyMCE is not defined shortcoder.js?ver=1.0.7:793
The file wp-content/themes/shp/core/backend/scripts/shortcoder.js had a fatal error on line 793 so I corrected it. It’s part of the current template (nVision). You should also notice the developer of the template about this issue – it was causing errors on other pages on your backend as well.
The following line was replaced:
if(tinyMCE.activeEditor){
with:
if(typeof(tinyMCE)!= "undefined" && tinyMCE.activeEditor){
Now the search should work without any problems.