Cannot publish posts in WordPress - Database Update Error

[npdigimedia]

Hello,
I am unable to update or publish posts on my WordPress website.
It shows this error: “Publishing failed. Could not update post in the database.”
Website URL: npdigimedia.great-site.net

Can you please check if there is a database size limit issue or any other problem?
Thank you.

[EuropeanRat]

I’m not experienced with WordPress but according to other posts, emojis seem to break them. Try deleting them if you have any.