Does this occur with a new page or only with an existing one? If the latter, what kind of blocks are in it?
This occurs on an existing one and if i try to add a completely new page the same error seems to happen. The existing ones only have title and a paragraph blocks, some have the image block also but same thing. Seems to also affect posts so the editor in itself seems to be malfunctioning.
I have tried to recreate this and see no problems. I used WordPress 6.4.1 without any plugins and with the new default theme TwentyTwentyFour. PHP in version 8.2.
Can you have a look under Tools > Site Health to see if any anomalies are mentioned there?
Thanks for looking into this @threadi o/ It seems that it has fixed itself now. So possibly some server related possibly firewall issue that was cleared? Anyways the website and the editor in pages and articles is working as it should.
Thanks again and have a great weekend o/