The Corona version is 8 (Corona Legacy Material).
The model uses materials that may not be displayed correctly in very old versions of the engine.
For proper operation, make sure that the units of measurement in the scene are in mm:
Customize - Units setup - System unit setup - mm
The carpet material is made using the Displacement card (make sure that Displacement is enabled in your scene settings). Easily scales to your size.

Carpet size:

- 152*152 cm.

https://shop-jubi.com/collections/neutral-rugs/products/soft-cream-checkered-hand-tufted-round-wool-rug?variant=45943200907419 

More carpets:
http://3dsky.org/collection/shared/5321350