Error executing updater binary in zip: any help

Hello everyone.
I'm having some trouble updating my cm 12.1 custom nightly on my LG G3 vs985.

I have tried flashing the 23c modem to my phone, but I had no luck.
Here is what it gave me

Checking for MD5 file...
Skipping MD5 check: no MD5 file found
Checking for BASEBAND version 24B
Checking for BASEBAND version 35B
ERROR: It appears you are running an unsupported baseband
assert failed: g3.verify_baseband("24B: 2 . 0 . 1 . C1. 13-00073". "35B: 2 . 0 . 1 . C1 . 4-00005") == 1
E:Error executing updater binary in zip '/sdcard/Download/cm-13 . 0-20160319-NIGHTLY-vs985.zip'

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