Blog corrupted

Recently upgraded from previous version, which may or may not be relevant. Recently blog disappeared from public view, was restored by host tech support, informed that there was some infection, suggested I check for vulnerabilities. I discovered that a handful of posts disappeared from public view, though I know they are still in the database as I can access them in edit mode.

There is some corruption in the indexes, presumably that mess up the links. Since this affects a handful of posts I have an idea when this happened, but I don’t know how to fix the problem.

This is the site: http://autodidactproject.org/blog/culture/

As you can see, you can get the home page, but the latest post does not show up when one clicks on it from anywhere else:

http://autodidactproject.org/blog/culture/index.php/2014/06/time-travel-lore-5-%e2%80%98victory-over-the-sun%e2%80%99/

These are the other posts that don’t show up when you click on some access point:

April 2014
Bruce Kuklick’s history of American philosophy (8)
Bruce Kuklick’s history of American philosophy (7)

March 2014

Bruce Kuklick’s history of American philosophy (6)
Bruce Kuklick’s history of American philosophy (5)
Bruce Kuklick’s history of American philosophy (4)
Bruce Kuklick’s history of American philosophy (3)
Bruce Kuklick’s history of American philosophy (2)

the pattern is obvious. I think I recently added the subject term “Bruce Kucklick” to these posts retrospectively. They are still in the database but can’t be accessed publicly on the blog, as is the case with the last post added, in June. Any suggestion as to what to do about this?