b2evo v4.1.4, now v4.1.5

<http://blog.sohnen-moe.com/blogs/blog5.php>

The blog was working a couple of weeks ago, the last time I added a posting. Now it does not. The HTML output is simply truncated at some point. It happens whether viewing the blog or after logging in.

I am not aware of having changed anything regarding the blog or any of its support.

What could be causing this?