XF2 [8WR] XenPorta 2 (Portal) PRO 2.1.0.4

I have problems displaying xenporta 2. I executed the instructions in the letters. I unzipped and loaded the files inside the zip on the server, I installed by Admin CP addon portal, set the group permissions, but it does not appear in my portal.

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I did a test by inserting a new article with a related category and saw it in the portal: but the other existing articles how can I show them in the portal?

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I think we need to work from Admin CP in: import data, done but give me database errors, I think you need to have addon importers downloadable from xf customer rea