Hello,
tried to install your livery, your distro is odd for me, i had to upload textures only, add fltsim to aircraft.cfg and remake the layout.json, all was ok
/SSW
making a new section on barcodes.ini is not compulsory, just used if you change ATC ID for your purposes
your model.cfg is redundantand contains a wrong line:
withExterior_showInterior_hideFirstLod=true
also set Model=“consortium” in aircarft.cfg section added