In my client sites I'm using PHP 7.4 and have this fatal error:
Fatal error: Uncaught Error: Call to a member function getTestInterceptedRedirect() on null in ***/public_html/wp-content/plugins/aioseo-redirects/app/Main/Redirect.php:466 Stack trace: #0 ***/public_html/wp-includes/class-wp-hook.php(292): AIOSEO\Plugin\Addon\Redirects\Main\Redirect->templateRedirect('') #1 ***/public_html/wp-includes/class-wp-hook.php(316): WP_Hook->apply_filters(NULL, Array) #2 ***/public_html/wp-includes/plugin.php(484): WP_Hook->do_action(Array) #3 ***/public_html/wp-includes/template-loader.php(13): do_action('template_redire...') #4 ***/public_html/wp-blog-header.php(19): require_once('***...') #5 ***/public_html/index.php(17): require('***...') #6 {main} thrown in ***/public_html/wp-content/plugins/aioseo-redirects/app/Main/Redirect.php on line 466
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So, is a hell of a fatal error, unfortunately...