The user is facing this issue on the following gist. Please have a look at it and share the feedback.
https://gist.github.com/aspose-com-kb/37d0b72caf95873fb39c52e81ed6957a
This Topic is created by ahsaniqbalsidiqui using Email to Topic tool.
After installing msttcorefonts package, It is working now
It is nice to know that your issue has been resolved. Please keep using our API and feel free to create a new topic in case you face any issues.