Cannot activate plugin

  • lbl

    (@lbl)


    9 years, 8 months ago

    I have a plugin (Add Meta Tags) installed on a website, its files are in wp-content/plugins. But when I navigate to /wp-admin/plugins.php in order to activate it, it sometimes shows in the list and sometimes it does not.

    In /wp-admin/plugins.php if I click on “All” it does not show and the plugin count is 16. If I click on “All” again it shows and the count becomes 17. It toggles like that as I click “All”.

    If I try to activate it I get this error message “Plugin file does not exist.” If I click try to activate it again I get the messages “Plugin activated” and “The plugin add-meta-tags/add-meta-tags.php has been deactivated due to an error: Plugin file does not exist.”

    I have tried to uninstall and install it again without success. The same issue happens with other plugins as well.

    Any help will be greatly appreciated.

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