Thanks for taking time to leave a review. If you are experiencing a blank page this really could be a bug. Would it be possible for you to report that here: https://github.com/WordPress/gutenberg/issues/new. If that’s not possible I would be happy to make a bug report for you if you can give me more information, for example what plugins or theme are you using?
The theme is not popular, partly self-written. I can send it to you. Below plugins:
Ad Blocker Notify Lite
Akismet Anti-Spam
Autoptimize
Easy Pricing Tables by Fatcat Apps
Enable Media Replace
EWWW Image Optimizer
Lightweight Subscribe To Comments
OneSignal Push Notifications
Public Post Preview
W3 Total Cache
Webcraftic Clearfy
WP Clean Up
WP Dashboard Notes
WP User Avatar
WP-PostRatings
Yoast SEO
Яндекс.Турбо