Uncaught TypeError: document. forms is not a function

The error message "Uncaught TypeError: document.forms is not a function" means that you are trying to use the method "forms()" on the "document" object, but it is not a function.

Here are a few possible reasons for this error:

1. The "forms" property may not be defined on the "document" object in your browser or environment.
2. There may be a conflict with another script that is redefining or overwriting the "document.forms" method.
3. There may be a syntax error or typo in your code that is causing the error.

To resolve this error, you can try the following steps:

1. Check your code for any syntax errors or typos that may be causing the problem.
2. Make sure that the "forms" property is supported on the "document" object in your browser or environment.
3. Try renaming the "forms" property to something else to avoid conflicts with other scripts. For example, you could use "myForms" instead of "forms".
4. Try using a different method or property to access the forms on the page, such as "document.getElementsByTagName('form')" or "document.querySelectorAll('form')".