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Ticket for: Post Grid
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horstus
May 31, 2019 03:02 PM 1 Answers
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when I aktivate the premium version of the plugin it reads:
Das Plugin hat keinen validen Header.
(the plugin has no valid header)
I used the free version before (in combination with filter&search) and it worked.
deaktivated and than deleted the free version, then installed the pro version - when I activate, the error appears.

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PickPlugins
May 31, 2019
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Welcome to our forum.

Can you please go plugin list page and activate from there. please see the screenshot

View post on imgur.com

Let me know the result, also can you please tell me which version of WP you are using?

Regards

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