Corona version 9
The model uses materials that may not be displayed correctly in very old versions of the engine.

Pond Mirror mirrors in four compositions
https://www.burkedecor.com/products/pond-mirror-in-black-by-ferm-living?variant=32625700503588 
Small: 500*520*15 mm
Large: 1100*630*15 mm
Extra Large: 940*870*15 mm

The object is a single one, textures and materials have logical names
TurboSmooth is open

For Corona render, it is recommended to install a version not lower than 1.5, since the glossiness of materials is configured with PBR in mind

Who works in a V-Ray version lower than 3.1 be careful, there is a Microfaset GTR ( GGX) in the materials in the BRDF section, if your version is older than 3.1, then the BRDF field will be empty. Choose Blinn, Phong or Ward – which is preferable for you