• Just recently after install latest version , this activation error occurs from “activate now” The plugin does not have a valid header. However plugin can be activated from the “all installed plugins” page.

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  • Plugin Author Uncanny Owl

    (@uncannyowl)

    Hi, sorry to hear about the issue.

    I wonder if you could confirm exactly where you mean for the “Activate Now” link. We haven’t been able to reproduce this ourselves.

    I wonder too if we could get a LearnDash System report from LearnDash LMS > Settings > Support. Feel free to exclude any sensitive info. We’re mostly interested in PHP, WordPress and plugin versions.

    Our developer says this may happen if E_STRICT is set, and if that’s related, we’ll fix that in the next release.

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