diff --git a/content/roadmaps/107-nodejs/content/103-nodejs-error-handling/103-error-types/ProgrammerError.md b/content/roadmaps/107-nodejs/content/103-nodejs-error-handling/103-error-types/ProgrammerError.md
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-# Programmer Errors
-
-Programmer errors are bugs and should be dealt with in our code. they can always be avoided by changing some line(s) of code. Examples of such errors are; when a String is passed where an Object was expected, trying to read a property that is “undefined”, called an asynchronous function without a callback, and so on.
diff --git a/content/roadmaps/107-nodejs/content/103-nodejs-error-handling/103-error-types/operational errors b/content/roadmaps/107-nodejs/content/103-nodejs-error-handling/103-error-types/operational errors
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-# Operational Errors
-
-Operational errors represent run-time problems experienced by correctly written programs. they are not really bugs but are problems attached to something else in our program. Examples of such errors can be a failure to connect to a database, failure to resolve hostname, request-timeout, invalid input from the user, and so on.