EVM Portfolio Plugin PROBLEMS

Not working well!
Here my portfolio page: http://boardcamp.com.br/site/pranchas/
for example: click on category DHD, it only shows two post on page 1. click on page 2 it shows some others, but doesn’t stay on the proper category list!
PS: everything was working well when i only had 2or3 post on each category!
PLEASE HELP 🙂

https://wordpress.org/plugins/evm-portfolio/