Crash with log. 5.3 B1

1526.Logos Logs.zip
Started it up this afternoon. Preparing your library was displayed, and then crash.
Event Log:
4278.Event Log.zip
Edit: anything you would like me to do before I re-install?
L2 lvl4 (...) WORDsearch, all the way through L10,
Comments
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I suspect you may have a corrupt Library Catalog DB. Try renaming/deleting this file (Logos 5 may need to spend some time Preparing your library when you restart it):
\Users\Ken Baker\AppData\Local\Logos5\Data\jahgvcza.elw\LibraryCatalog\catalog.db
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Seems to be fixing it self.
What could have corrupted the DB?Doubt it was the hardware.
L2 lvl4 (...) WORDsearch, all the way through L10,
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Crashed again. But restarted the program, installed the "update" (which surprises me because the build number is the same). ? And now it seems stable. Leaving it be while it downloads 3gb more of updates.
L2 lvl4 (...) WORDsearch, all the way through L10,
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