Hello,
the problem is on your database. An important file is KO (hands_summaries_v2...).
You probably had a crash of your PC and the database is now KO.
You can try "Start > Repair the database".
Or you can restore your last backup and make an import of all yours archives (Import > the last item).
You can also make another installation over it without keep data and config.
Verry sorry for this.
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