Getting this error through the stack trace:

An exception has been thrown during the rendering of a template ("The component 'disqus' is not found.").

I can literally see it in the file structure..

make sure that you have the correct project ID associated. Perhaps try removing the plugin and then re-adding it as well.

Getting this error through the stack trace: A plugin with name "disqus" could not be found

Name the plugin by its unique code. For example, RainLab.Blog What is the unique code for "disqus"