I have used this theme a while ago 2-3 years. Something changed I do not know how to add the title to a new post or page.
You may be having another issue with the theme or WordPress. In normal circumstances, I could’ve asked you to contact the the author but most likely you don’t have active support.
I can offer paid support at Studio, if you’re interested in, at this stage:
Simply just get in touch with authors support but still after connecting with your author you don’t get the issue as settled then you may get in touch with me via email through my Envato profile