Question Text-Edit / Server-Error

[willijansen]

Hi, I have in Elementor created a new page and would like to capture there text. If I capture the text as a regular text, the page is stored as normal. However, as soon as I enter a control character (return for newline, bold, underline, italic, etc.),the storage is rejected with the message "Server error (403 Forbidden)". I have already deleted all plugins except Elementor and deleted Elementor and reinstalled, unfortunately without success.
Does anyone have a solution for the problem?
Many Thanks