Welcome to the Community, Eulene.

Before we start, could you please specify what kind of encoded programs you're seeing on your end? Are you seeing unfamiliar symbols, garbled texts or unreadable content? A screenshot would be very helpful and appreciated.

In the meantime, please refresh your browser and log back into your account to resolve any minor display glitches within the browser. If the issue continues, let's try using a different supported browser to rule out any possible system-related issues. 

You can check this article for more information: Fix issues when starting Accountant and certification training.

Feel free to revisit this thread if you need further assistance.