Segmentation fault

hi

Why doesn't monitor-example.py run?

`sudo python3 monitor-example.py /dev/ttyUSB0 9600`

output:

```
[INFO] [OnlineMonitor]: Enable collection: 5G_NR_RRC_OTA_Packet
[INFO] [OnlineMonitor]: Enable collection: LTE_RRC_OTA_Packet
[INFO] [OnlineMonitor]: Enable collection: WCDMA_RRC_OTA_Packet
PHY COM: /dev/ttyUSB0
PHY BAUD RATE: 9600
Segmentation fault
```