BIE update doesn’t work with multisite

Sorry, private site so can’t provide link.

Upgraded to latest BIE on WP 5.1.1 using panel. After that, network admin on multisite stopped working giving 500 error. Logs show this:

Uncaught Error: Call to undefined function wp_get_current_user() in /srv/www/htdocs/wordpress/wp-includes/capabilities.php:634\nStack trace:\n#0 /srv/www/htdocs/wordpress/wp-admin/network/settings.php(16): current_user_can('manage_network_...')\n#1 /srv/www/htdocs/wordpress/wp-content/plugins/blogger-importer-extended/includes/client.php(3): require('/srv/www/htdocs...')\n#2 /srv/www/htdocs/wordpress/wp-content/plugins/blogger-importer-extended/bootstrap.php(18): require('/srv/www/htdocs...')\n#3 /srv/www/htdocs/wordpress/wp-settings.php(295): include_once('/srv/www/htdocs...')\n#4 /srv/www/htdocs/wordpress/wp-config.php(96): require_once('/srv/www/htdocs...')\n#5 /srv/www/htdocs/wordpress/wp-load.php(37): require_once('/srv/www/htdocs...')\n#6 /srv/www/htdocs/wordpress/wp-admin/admin.php(34): require_once('/srv/www/htdocs...')\n#7 /srv/www/htdocs/wordpress/wp-admin/network/admin.php(13): require_once('/srv/www/htdocs...')\n#8 /srv/www/htdocs/wordpress/wp-admin/network/index.php(11): require_once('/srv/www/htdocs...')\n in /srv/www/htdocs/wordpress/wp-includes/capabilities.php on line 634, referer: <private>

Renaming the BIE plugin directory made multisite admin work again.