Why is the template import invalid?

I have tested more than ten advanced templates. Except for one that can be imported normally, the others cannot be imported. What is the reason?

Are those from Elements?

很多envito elements的高级模板安装总是失败,导入无效。

ki-themes via Envato Forums <notifications@envato.discoursemail.com> 于2024年2月25日周日 15:23写道: