If you use Nginx and meet this problem with some WordPress plugin tab error “You do not have sufficient permissions to access this page”, please read this post, it’s easy to solve.

You need to edit the WordPress core file:

Go –> wp-admin –> options-general.php

Open options-general.php, add the following code before the <php

<base href="/wp-admin/options-general.php" />

Refresh your page.