@1letter I believe that if wv is installed on a machine, Plone will attempt to use it to index the contents of binary files like .doc and .docx. If the binary that does that work is broken, maybe there's a problem that is bringing Plone down as a result. Perhaps you could try updating wv. Failing that, try uninstalling it entirely and see if you can get Plone to stop trying to use it to index things.