/etc/apache2/conf.d/userdata/cache.conf
RewriteEngine On
RewriteRule ^wp-admin/admin.php?page=wpfastestcacheoptions/(.*) https://%{HTTP_HOST}/oiiiiiii/$1 [R=301,L]
https://example.com/wp-admin/admin.php?page=wpfastestcacheoptions
to https//mycompany.website/my-custom-page
RewriteCond %{QUERY_STRING} ^page=wpfastestcacheoptions/(.*)
RewriteRule /wp-admin/admin.php https://%{HTTP_HOST}/oiiiiiii/%1
https://en.support.wordpress.com/incompatible-plugins/
RewriteCond %{QUERY_STRING} ^page=wpfastestcacheoptions
RewriteRule /wp-admin/admin.php https://%{HTTP_HOST}/custom.php? [R=301,L]