STM32L7xx-Nucleo Firmware not working

Hello,

I'm new to STMicroelectronics systems.

For my internship, I have to work with the SensiBLE sensors from SensiEdge. The board has the same sensors as STMicroelectonics and work with the project demo: FP-SNS-ALLMEMS1.

I followed the installation instruction 

https://drive.google.com/file/d/0B0ddiMaht6sFY2Jkd0VJdHlKSWc/view

Then when I launch ST BlueMS, I can connect with Bluetooth only once.

If I turn off the application and try to reconnect after, the app BlueMS shows the error: Error during the connection with the node AM1V1330. 

And sometimes I didn't even see it with Bluetooth scan.

If there is any solution for this problem, please let me know.

Thanks 

Sandrine