The ECU version in your car is newer than the Daten files you have. You need newer files. Conclusion
: Click on the Select SP-source button at the top left. Browse to and select the extracted E89 folder on your desktop. bmw e90 sp daten files
You imported a "Lite" or "Standard" version of the SP-DATEN rather than the "Full" version, leaving WinKFP without the assembly line data needed to initiate a flash. The ECU version in your car is newer