You can download it also via SSH:
Enter this command:
root@Teltonika:~# troubleshoot.sh
Connect to router using WinSCP software:
File protocol: SCP
Host name: 192.168.1.1 (router IP address)
User name: root
Password: admin01 (or new WebUi password)
Go to /tmp directory and copy “troubleshoot.tar.gz” file.