Segmentation fault (core dumped)

I am trying to run this model on a new image in cpu mode by the given command-
`th run_model.lua -input_image test2.jpg -gpu -1`
Everything is installed successfully and also downloaded the pre-trained model, but I am getting this error at the `run_image()` function call. Not able to understand where is the problem. Can anyone help with this? Thanks!

> 1/1 processing image test2.jpg
> Segmentation fault (core dumped)

My system is ubuntu 20.04 with Lua 5.3.