Template options not saved


in my wordpress site i’ve some issues to save the template options (BELLARIA is the template).
for example if i want to center the logo in backend i select the option “center” under “Logo position”

then i click to Save Changes but it doesn’t work. the page reload correctly, some other changes are saved but not the position.

the same issue is present in the page customization section:

in the same select: Logo position with the same buttons.

someone can help me?