Puck.js problem to save code

Are you sure the code posted right at the beginning is the only code running on your device?

That error corresponds to BLE_ERROR_GAP_INVALID_BLE_ADDR which is described as:

The upper two bits of the address do not correspond to the specified address type.

It seems possible that your TELO 580 is reporting itself with an invalid Bluetooth LE MAC address.

Please could you tell me what the MAC address the nRF Connect app reports the TELO 580 as is?