Fatal PHP error with WordPress 5

When updating to WordPress 5 this plugin creates a fatal PHP error on the frontend and backend:

”
Fatal error: Uncaught Error: Call to a member function using_index_permalinks() on null in /home/slaauk10/public_html/w2/wp-includes/rest-api.php:344 Stack trace: #0 /home/slaauk10/public_html/w2/wp-includes/rest-api.php(404): get_rest_url(NULL, ‘/embedpress/v1/…’, ‘json’) #1 /home/slaauk10/public_html/w2/wp-content/plugins/embedpress/EmbedPress/Core.php(329): rest_url(’embedpress/v1/o…’) #2 /home/slaauk10/public_html/w2/wp-includes/class-wp-hook.php(286): EmbedPress\Core->addOEmbedProviders(Array) #3 /home/slaauk10/public_html/w2/wp-includes/plugin.php(203): WP_Hook->apply_filters(Array, Array) #4 /home/slaauk10/public_html/w2/wp-includes/class-oembed.php(221): apply_filters(‘oembed_provider…’, Array) #5 /home/slaauk10/public_html/w2/wp-includes/embed.php(115): WP_oEmbed->__construct() #6 /home/slaauk10/public_html/w2/wp-includes/embed.php(134): _wp_oembed_get_object() #7 /home/slaauk10/public_html/w2/wp-content/plugins/jetpack/class.jetpack.php(1820): wp_oembed_add_provider(‘https://cloudup…’, ‘https://cloudup.. in /home/slaauk10/public_html/w2/wp-includes/rest-api.php on line 344″

Disabling the plugin brings the site back up

Regards,

David

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