Let me explain once more and please follow instructions on yvComment's Homepage until you get everything working Ok and are ready for experiments:
1. "Comments" are
Articles from Joomla! point of view. So, like any other Article, every Comment have to be assigned to exactly one Section and exactly one Category.
2. But "Comments" are special
type of Articles (from yvComment's point of view). Unfortunately, Joomla! has no built-in support for new types of Articles, so the only "native" way to distinguish between "General" Articles and any new type of articles (e.g. "Comments") is to create Section (and Category in this section) exclusively for comments.
This is why you MUST make selection in parameters "Section for Comments" and "Category for comments" (just like it is stated in Step-by-step configuration of yvComment plugin
3. I think, that what you really want (but didn't tell me
) is to "allow comments for articles of ALL sections and categories". This will be the case without any special setting in yvComment's parameters (I mean, you don't have to select "All" in any list). On the contrary, if you want, e.g. to allow comments for only Section with ID=1, You SHOULD type "1" in the "List of Sections IDs of Articles which may, or may not, contain comments" parameter and leave "Exclude Sections and Categories, selected above (No - include)" parameter UNchecked.
when i leave parameters ''List of Sections (Categories, Articles) IDs..." empty.
It show this warning message on backend and frontend
"Section is not set. Please configure Section for yvComments (in Plugin Manager for yvComment Plugin)"
I use version 1.19.3.
And when i want to select more one not for all section or category. How i do this.
These are exactly one Section and one Category for Comments themselves.
Sections and Categories for Articles to be commented by these Comments are below on your screenshots!
'All' are by default (just leave parameters ''List of Sections (Categories, Articles) IDs..." empty.
how i can add select all for Select Section and Select Category?