The digital version doesn't contain page 50-51 (simply missing).
I checked my paper doujinshi, and those two pages are just full of large texts such as "the 63rd national high-school tankery tournament," "Nikujaga (Japanese Beef and Potato Stew) vs hamburger," "Final match! Oarai vs Saint Gloriana," and "Urban Warfare."
I'm not gonna scan them fyi, and I guess the author thought likewise, thus removing those two pages from the digital version.