i was viewing the Table of contents in Glossary of Morpho-Syntactic ???
i had been using the Info pane with an Reverse Interlinear for examining the morph of a Hebrew word and then looking at a definition in the Glossary. It had been working for a while, then got the message shown in image below.
Had another floating window of Passage Analysis open. Also a floating window for Search.

Log file: 1680.Logos4 (8).zip
L4 ver: 4.0aSr3
My system: see signature below
P.S.
Was working OffLine per sign-in screen.
After re-starting L4, it seems to be working now.
Logos, i hope you can figure out why every several days L4 crashes in different places.
http://community.logos.com/forums/t/11782.aspx
http://community.logos.com/forums/t/11618.aspx
http://community.logos.com/forums/t/11327.aspx
Thanks