cannot load wp_discuz options page
I installed WpDiscuz a while ago, and am only now starting to use it.
I'm on WP 5.5.1, or whatever the latest version is. Everything is up to date.
Only when I click on Settings for the plugin, I'm told "Cannot load wp_discuz options page."
I have no idea how to fix this. I'm fairly tech-savvy, but without any error messages or diagnostics, I'm at a loss.
I've attached a screenshot of the error.