The editor for The 7 doesn't load

Hi there, I’m completely new to this forum and am in search of a solution to my problem. Since updating my homepage to WordPress 4.8.3 the editor won’t load anymore. White screen. I have tried deactivating all the plugins but that has no effect. The WordPress support team recommended getting in touch with you. Can you help?

Welcome to the community forums. :slight_smile: For support with an item, you need to contact the author directly.

Here’s the support page for The7, where you can reach its developer: