Too many troubules and unstability

I tried this theme believing a review article that recommended flexibility and lightweight design. However as other reviewers have said, every update of WordPress or a plugin, the header, etc. collapses, and when I tried to reconfigure it by customization menu, I couldn’t fix or initialize color settings. Also check box controls didn’t work properly. I was very disappointed and frustrated.
Airi has multiple menu styles, but I think we don’t need incomplete choices. I’m enough with only one style working stable.