Hello, I have already been able to solve the problem.
I have enlarged the size of the group of banners that contained the cut banners.
On the web the banners are 1068 x 275 pixels and in the mobile 300 x 500, then I have defined the group in 1068 x 500.
I solved it from the AdRotate Pro plugin. Not the theme.

thank you anyway!

Hi!

This are the banners that not appear complete:
https://www.dropbox.com/s/5d4706m76t4rbgd/Screenshot_2018-09-12-09-21-15.jpeg?dl=0
https://www.dropbox.com/s/er0gtkvdg05apxc/Screenshot_2018-09-12-09-21-59.jpeg?dl=0

And the banners should be showed like this
https://www.dropbox.com/s/wp5v2f370z5lrz5/CREPUSCULO_300x500.gif?dl=0
https://www.dropbox.com/s/s1lmgj1huwhu7vy/Optimoda_banner_300x500.gif?dl=0

In the spaces there are also two more banners rotating, but in these cases it is clear that they are not complete.

Thanks!