I ordered two sensors. One worked, the other didnt from the day it was put on. Waste of much money

Pack: 1Size: Libre Sensor

I applied the CGM censor at 1:00 am and it got activated and gave the reading but by morning 8:30 it has stopped working and not giving any reading only the message to replace the sensor, I am going travel in Mountain and wanted to check my sugar continuously but it has been so disappointing

Pack: 1Size: Libre 2 Plus