a problem with the number of pages that appear in categories

OpenCart hello friends need to know the path to change the number of pages that come in the categories as they appear more pages than it should be a thousand thanks for your prompt assistance Screnshot les dejo. My Store in
open my cart version 1.3.0.

Qphoria thousand thanks for believing that the answers are for everyone no matter where they are or how they are so far thanks again.