All the changes I made in the database got converted into .lck extension.
Can anyone help me because I lost very important changes in my database.
The newest file, “Contratos Vigentes”, is the file, which contains the database-file. I’m missing the extension but it could be your system is suppressing extensions for known file formats. You could delete all files with *.lck when the database has been closed. This are only files which should prevent from opening the file the same time on a second place. The file could be only opened write protected in this case.
Seems LO has been crashed very often while designing the database. Do you try to create reports with the report builder? This is the most unstable part of LO …