It returns me a critical error and proposes me to enable Safe Mode. So, I did but WordPress returns me an error as well as soon as I try to edit the code block.
Weirdly, if I deactivate Metabox and Metabox AIO, I can edit the Code block.
My website is in private view but I can open it to you if you are able to provide me your IP address to whitelist it.
WordPress version 5.9.3
Theme : Oxygen Bare Minumum Theme (version 1.0)
Extensions : SCORG 3.3.1 + Oxygen 4 Beta 2 + MetaBox 5.6.3 + MetaBox AIO 1.15.8
PHP version 7.4.29