Thanks Alok for your reply.
The problems disappeared, I suppose , because I reinstalled the theme or because the problems was a wordpress issue. I’m not sure what caused the problem. Anyway everything is fine now.
By the way I want to ask for another issue. I want to advice me , how to change the style and size of the title fonts in the front (home) page , static or dynamic. Although, through Evolve menu, it’s possible to change them for pages, blogs etc, this doesn’t work in the front page. This is very important for the appearance of my website.
Thanks in advance and have a nice day.