Hello,
unfortunately, the performance file definitions have changed a little bit from v2.06 to v.63. So the new files are not compatible with the old version.
However, upgrading is totally free of charge as long as you have a valid license.
If you are in doubt about your license, you can just check the 'License' tab in the 'Configuration' menu
or send us a mail with your license details.
I couldnt find the configuration menu..would you please navigate me?