This model is advertised as 3D printable, but that claim is misleading.
The mesh contains hundreds of defects, including open edges, non-manifold geometry, and broken surfaces. It is not watertight and does not form a solid volume required for 3D printing. In reality, it is a collection of zero-thickness surfaces typical of render models, not printable geometry.
Automatic repair tools cannot handle this level of errors and are unable to produce a usable result. Making this model printable would require extensive manual work: rebuilding geometry, closing all holes, adding thickness, and partially remodeling large portions of the mesh.
Calling this model “print-ready” is misleading to users. In its current state, it is not suitable for 3D printing and would require an amount of work comparable to recreating the model from scratch.