Problem with category archive

Good morning, I have a big problem with this theme. When this theme is active, the archives of pages, tags, category, authors, etc. they are empty.

I tried to disable all the plugins, then I tried to regenerate all the permalinks, but it still does not work.

If I change theme, everything works correctly (with all the plugins activated).

Besides, I already have other sites that use Appointmen and I have no problem.

Can someone help me?


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