Magnetometer calibration fail

Hi, I have an issue with the RIOX1216AHRS. Simply, when i try to calibrate my sensors (rotating the device for 1 min) after i clic "done" i get this message : 

 

saying (in french) that he didn't found the MagCalibration.dll

i tryed to reinstall the app but it didn't solve the issue.

Thanks in advance!