In order to diagnose the problem, we need details like what programming language or tool you’re working with and how Sublime has been to told to execute it. The way that’s normally done is with a sublime-build file.
It sounds like you don’t know what a sublime-build file is, so chances are good that you’re using a build that either ships with Sublime or comes with a package that you installed, and the text of your error message indicates that you’re on windows.
Are you by chance trying to run Python code under windows (maybe using Miniconda or Anaconda), and it used to work before the update and now it doesn’t?