Support » Fixing WordPress » 300 Error while opening plugins settings

  • As you can see in the next video, i cannot use plugins like this (stream video player).
    When creating a new post if i whant tyo use a plugin, instead of shoing me the plugin page i get the 404 theme page.

    I have already tested without any plugins and with 3 diferent themes, but the issue persists.

    It used to work and now i cannot use any plugin that needs to call a config page.

    It appened with other plugins too.
    WordPress Error

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