Hindi Fonts show as boxes

Hello,

I am using this plugin to create invoice. All is fine, but for the products title in Hindi, it is extracting boxes (Image 1). Example from product page in Image 2

Image 1 https://imgur.com/1rEpD4v

Image 2 https://imgur.com/2N9UUV8

Experimented with Enable font subsetting – both checked and unchecked status = gives same output.

Any fix for this, please?

Thanks in anticipation.

Arvind Agrawal

The page I need help with: [log in to see the link]