Posts wont show up

Hi there, my name is Denis and i’m new to this forum.
I was always trying to solve my problems alone and didn’t really want to bother others, but this i just can’t solve.
You see, i’m using the de_tube theme and i was uploading content.
I was checking my episodes that i uploaded and everything was good till the 19th page and when i clicked on the 20th there was a white screen.
And every post on that page and older was blank too(the whole page).
I was hoping to find some help here. I’d appreciate any help.