Megan is not responding while opening ncbi.map from my PC running win10

I just installed Megan 6 and started to run it but could not started. Message box appeared and it says “opening startup files loading ncbi.map:2,031,708” and renewing the box again and again but program is not starting. I reistall the Megan6 and get the same problem.

Which version? Please update to the latest