Tracks not showing

So i am learning how to make route in openbve, so i used BVEcornwall tutorial, i made script, everything works but tracks not. I checked script and everything is written correctly, but i cannot see rails. What is problem (rails are .b3d)?

It usually happens when either the route isn't in Unicode UTF-8 with BOM encoding and/or the access path to the rail object file is mistyped in the route or has syntax error. Check them carefully and fix if you find a mistype in the route CSV file.

just getting started and mehn, its so cool.