Page not found while draft preview

When I write a new post, and then I’d click preview button, wordpress says that page is not found. A little time ago (I don’t remember when) there was information, that I’ve not enough permission to preview drafts.

I’ve got wordpress installed in subdirectory. The wordpress url is https://name/wordpress, and the site url is https://name. When the site url is set to https://name/wordpress, and the word ‘wordpress’ is removed from index.php in main directory – it works ok.

So I don’t know how to fix this. Sorry for my english, I hope You can understand it.