Having problems with database older version of mAirlist

Hi Torben

Due to installation of version 5 we have some problems with our older version of the database required version 20 current version 21 and i cannot upgrade please help out

error 21.png

You cannot share the database between v4 and v5.

Yes i downgrade it to version 4 again now i have these problems , what can i do about this please can you help out?


You can downgrade the software, but it is not possible to downgrade the database. You must use a backup - hope you have one :wink:

That’s the problem i do not have i was forgotten to make one