Posts pagination not working (page not found redirect)

Hi,

I have a news-page with a list of all the posts of the ‘Projecten’ CPT. I’m using the Posts module to setup the page and added pagination by numbers. When I want to check the next posts, I get ‘Page not found’, I tried the Load more option, but this gives the same problem. besides the Posts module I only have 2 other columns with normal text on the page