Uncaught TypeError: Cannot set properties of null (setting

'innerHTML')

This error message indicates that you are trying to set the innerHTML property of a null value, which is not possible. This usually happens when you are trying to access an element in the DOM that does not exist, or has not been loaded yet.

To fix this error, you should first check that the element you are trying to access exists in the DOM. You can do this by using the document.getElementById() method to retrieve the element by its ID. If the element does not exist, you can create it dynamically using the document.createElement() method.

Additionally, you should make sure that your JavaScript code is executed after the HTML document has been fully loaded. You can do this by placing your script tags at the end of the HTML document, or by using the window.onload event to ensure that your code is executed only after the page has finished loading.