Customizr theme need help

Good day.
I apologize in advance for my english!
Please help me with the theme the fact that the use of standard pages “/property” or “/rental”, and when viewing the contents of a separate listing spreads over the entire width of the browser.
‘single.php’ and ‘archive.php’ files in my theme are absent… Probably easier to choose a different theme, as with a standard WP theme all is well.

Thank U.