After viewing the last record,
I closed the table.
LO crashed.

Database is not big.
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CPU or RAM has no problem for I could use other applications while LO was crashing.
This case is the first time for me.
After waiting so long, I clicked Terminate Application libreoffice-base.
And I’ve got a gift, .odb.lck .

What should be done next ?
| Fedora 31 Workstation KDE Desktop Spins | LibreOffice 6.2.8.2-2 |
