In my case, not only the site crashes, my provider told me, that the whole server breaks down cause of overloading. The crash happens every time, when I save a new article. I receive the announcement "connection interrupted, savings disabled ..." (in german).
For some minutes, I can't do anything, and then it works again.
I'm using the statistics, the sharing and the publishing. What I have done is to cut all connections to other platforms. Maybe I can find out, if a special other platform cuases the error. (tumblr, twitter, facebook are still connected. All others have already been disconnected)