I had solve it. The problem was in too long description and title of these images (>200 characters). After I had shorter title and description in metadata, these photos was processed fine. Thank you for supporting!
Well, now I have a new problem. After installation of this theme, I can’t find ‘Media’ tabs in Symbiostock, so I can’t find my uploaded photos. I can find it it in Media Tabs, but I can’t set there price and other settings. https://yadi.sk/i/nOUDWnRzEIdukg