WMnet - error 109 - read past eof

I have  a site that appears to have lost all their work for June after
moving their server to another location.  Checking the Interbase log, I
see the error WMnet error 109 - read past eof.  Could all of June's work
be in a bulge that has been lost by jarring the box?  Can I rebuild
indices or something to retrieve the data?  Any help would be most
appreciated, these people are about to crash and burn badly if somebody
cannot find the data.

????????

Thank you,

Anthony Watson