You forgot to include the models. Your lua file only has the materials.
Which lua file, the resources or the pointshop.
Looks like the resources does
resource.AddFile( "models/neptunia/player/irisheart.mdl" )
[editline]9th February 2016[/editline]
resource.AddFile("models/neptunia/player/irisheart.dx80.vtx") resource.AddFile("models/neptunia/player/irisheart.sw.vtx") resource.AddFile("models/neptunia/player/irisheart.dx90.vtx") resource.AddFile("models/neptunia/player/irisheart.phy") resource.AddFile("models/neptunia/player/irisheart.vvd")
seemed to fix it.
F0x’s Resource Generator seems to not add those.
Those are automatically downloaded when you use resource.AddFile on a .mdl file (See resource.AddFile)