Blank browser page when creating new post, page or project

When I try to create a new project, post or page in wp the editor does not load or anything from wordpress, only the blank browser page appears.
I am using the Divi theme and I have tried in Safe Mode, disabling all plugins, without results. I have also updated all the plugins (only two) that I was supposed to update and I have disabled them again one by one, without results. In Tools “Site health” they tell me that everything is fine, and in Google inspector, in “Console” I get no errors. I also saved the Permalinks again, because that was suggested in a forum, and I also enabled the Theme Twenty twenty two, thinking that Divi could have some responsibility, but I didn’t have any results either. I have cleared the cache at each step.
I can edit Divi projects, pages and posts that are already created but I can’t create anything new.
What can be caused this? What else can I do?
Thank you very much in advance for your help!

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