TO GET THIS TO WORK YOU NEED TO DOWNLOAD IT FIRST AND FOLLOW THE STEPS

1)UNZIP THE FOLDER FIRST
2)YOU WILL GET A TEXT FILE
3)DOWNLOAD BANNER PASTE MOD
4)THEN COPY THE CODE FROM THE txt FILE
5)OPEN THE GAME AND GO ON THE TAB WERE YOU EDIT THE BANNER
6)THEN PRESS Ctrl+V
------------------DONE--------------------

https://www.nexusmods.com/mountandblade2bannerlord/mods/1003
MOD:BANNER PASTE
AUTHOR:gooboon