Split database no connection

Windows 10 PC
LO version 64 bit

I have a split database that was open when I suffered a power loss. When I restarted my PC and tried to open the DB LibreOffice asked if I wanted to recover the DB. I did so but now it doesn’t work. Two error messages as follows:-

The connection to the data source “Split_HSQLDB_2.3.2_Wizard_v3d” could not be established.

SQL Status: S1000
Error code: -451

Database lock acquisition failure: lockFile: org.hsqldb.persist.LockFile@f5421ba3[file =C:\Users*\Documents*\Database\Split\database\mydb.lck, exists=true, locked=false, valid=false, ] method: checkMagic magic: ‘0000000000000000’

Can this be recovered?

Remove mydb.lck and try again.

You’re a lifesaver. Thanks. Saved me inputting 4 months of data. Better get backed up!

If it had been an emedded database, all data might be lost now. Yes, shut down the database connection and backup now!