3d model not loading on browser on custom domain

We have been working on configurator app with 3d model houses. They are working fine in shapespark url but only one of four models are loading on browser. We have set content-encoding: gzip header to serve buf file. Beside this the model that is loaded have a lot console error.
shapespark url

model on custom domain
http://prefabplant.bitsbeat.com/models/plantprefab_model_c61/ (working with errors)
http://prefabplant.bitsbeat.com/models/plantprefab_model_ad1/ (not loadig)

(We have continued this discussion via emails).

Hi @Pradypkc would love to chat with you about the development of the plantprefab 3d configurator.