Internal Server Error

[timomalum]

I tried to edit an old post and when I 'saved' it, I got an internal server error message. Even if I opened that particular post and did no editing, I couldn't save it without getting the error message. Out of frustration I deleted the post and created a new post using the same content (a photo and some text). I still got the same error message! I did some experimenting and I was able to save the post after entering nothing but the blog title, tags, description, and the photo. I then added text, paragraph by paragraph, saving after each paragraph. It worked until I entered the fourth paragraph, and then the internal server error message came back. Even adding a single additional character would make the error message come up and I'd be unable to save.

This makes no sense to me. How can adding a single character of text cause a server error? I created a post earlier in the day without any problems. I have plenty of server storage space so something else is the problem.

Anyone else encounter this?

[Edi]

The error log of the server or Bludit should give some information.

Also it could be a problem caused by the firewall.