Strange, a HippoPlayer reqeuster without running it. However, you can disable "Cybercalibration......." and "Use CyberSound calibration.." in HippoPlayer prefs. Better would be to create a 14Bit_Calibration file. See HippoPlayer "Support" drawer and read 14bit.Doc first!
If you are on WinUAE it might be better to use AHI instead.