Hi, I’m not sure what’s going on but the plugin is causing some issue with the result.
example, the result is Showing 1–31 of 50 results but it showing on 2 products in the result. If I disabled your plugin, then the result us ok.
From what I can see the search override is causing the problem. The theme or another plugin might have an built-in override or some kind of sorting active, and they might not like each other.
Try turning off the search override on the General Options -> Behavior panel, it should solve the problem: http://i.imgur.com/njcWcka.png