I get the same error. llamabeast did not include any banners
is my best guess. there are no tga files i see associated with the Mod. I actually went and dowmloaded the sns banners found
on p. 5 of the mod forums, but then got the error for llamabanners.
So I think your best bet is to wait on the updated version.
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"War is an art and as such is not susceptible of explanation by fixed formula."
- General George Patton Jr.