curios_mind add other files related to this task. It looks like the problem is in function getUserName, which you haven't included.
getUserName
curios_mind // please do this getUserName in helpers.js file. export const getUserName = function(count){ return users[count].name }
Coderslang_Master The task did not ask me to create any other file, here is what I have from the other files
helpers.js
while this is for constants.js
constants.js
curios_mind the error is in the line 3 of the file helpers.js. You should use userID instead of a hardcoded value 1.
userID
delete