Can't Browse Categories

Hi, Good Day!

I’m having trouble to browse categories page.
It’s normal when first page > mysites.com/categories/
But it say page not found when second page and so forth > mysites.com/categories/page/2/

this is my site > http://www.juragan-anime.net
you can check my categories page > http://www.juragan-anime.net/series/
and it say not found > http://www.juragan-anime.net/series/page/2/

Please help me.
Sorry about my bad English.

Thanks in advance.
Cheers.