Can't communicate with servo shield

When i connect servo shield with my OpenMV cam H7 and add the external 5v from battery and connect to pc via usb and run the servo shield example i get:

OSError: [Errno 110] ETIMEDOUT in PCA9685 line 9.

Do you know the problem? Please advice me where to look and how to improve?

This would imply that the I2C bus is not working. Can you check that the shield is mounted correctly and that P4/P5 are engaging the shield and that solder points are good?

Thanks for the quick reply, that was it.