Check if your language is enabled for creation or not, see this post
This should also enable New Page Link.
You can also checkout this post for more information.
I haven't gone throughout full post but it has relevant piece of information.
Thank you, it was solved problem
I have no idea while both new page and translated button are disabled. I checked permission. My account is in administrator group and have full control of every permission. Do you have any idea? They were able to create new page and translate before, but I don't know why they are disabled now.