XF 1.1 The loss of threads and posts


New member
Hello. I have a trouble today.

Forum worked stable all the time. Thanks for the developers. But today, suddenly disappeared almost all topics and posts in the forum, there were only one of several categories. The rest just disappeared. Now people can create new topics in the empty sections, but old is not to show.
The most interesting part of the story as follows:
  1. In database ALL topics and post is exists;
  2. New posts has ID on ~300 more (For example, old posts 89956, 89957, 89958, but now after disappeared all posts 91210, 91211, etc..);
Can you help me?