MKR1400 CPU reset error

MKR1400 was connected successfully with IOT cloud, but after a few days it stopped connection and while trying to download from Webeditor , it continuously connects and disconnects with the board on COM port.
I tried to reset the device with double tap the RST button and reconnected to the laptop, but still no improvement.
Pls.. refer attached error message.

error.txt (1.13 KB)

Hi,
Do you know if in your area you're connecting using 2g or 3g? Are you powering the board via usb only? Do you have a battery connected to the board?

Thanks,

Dario