This business database is not valid *Please help*

1

I trying to import data to another laptop.
But show below error. Anyone can help? My data all gone :sneezing_face:

This business database is not valid
Manager data is stored in SQLite database. However it appears the file you are attempting to open is not a SQLite database.

2

See Manager does not want to import my old database - #2 by Patch

3

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I had install old version but still having this issue

4

It looks like your database is corrupted. Do you have an earlier backup of it?

5

really? I try the earlier backup. Thanks alot

6

The manager data file is updated when opened with a later version of Manager.
Once updated you can not go backwards, you can only use a backup which has not been opened with a later version.