Hello,
We did have our production Confluence (server version 6.12.1) running under Linux and the database is running under Ms SQL server (under Windows). We try to migrate to Confluence latest versions (data center) running under linux with database running Mysql server.
I did an backup inside Confluence and try to import the zip file on the new server but got error at 90% (java.lang.RuntimeException: Could not read fields for table AO_0A5972_NOTIFICATION_SETTING