First of all, I’m really sorry have taken long time to reply you due to the weekend and I am appreciate your patience.
To assist you in the best possible manner, I kindly ask that you please provide me temporary wp-admin info (wp-admin URL, username, password) to the Private Content area, this will allow me to thoroughly investigate and address your concerns more efficiently.
I have already solved the problem.
I don’t know what the problem was, but after I imported the template from the “Prebuilt websites” section, everything worked as it should.