Can't install Lineage OS due to outdated bootloader on Moto G 2013 XT1034 falcon
Use this tool to upgrade your bootloader to a compatible version.

You should also update your TWRP to the latest version, as older versions aren't compatible with the new bootloader either, and will display a moving line across the screen if you insist.

After these steps you are clear to proceed to flashing LOS 14.1.