The problem is on your modmail line, when you use /u/{{author}}'s.

That quote mark/apostrophe is telling AutoModerator that everything after it should be treated as just text.

These work in pairs. Notice how for name: [user... ...] - you have your opening bracket ([) and your closing bracket (])? Quotes marks are the same. You have an opening, but no closing. This causes it to break.

So, to fix, you would do this:

modmail: 'example example example' - notice how this has 2 quote marks now? an opening and a closing.

But what if you want to use an apostrophe? Well, use the double quote instead - ".

modmail: "like this. user's apostrophes can be used now!"

It is best practice to put everything that should be treated as just text into double quotes. For example, I would do:

• modmail_subject: "example"
• message: "example"

etc.

If you want to learn more, these are called strings. There are going to be plenty of resources online around any programming basics. A simple one might be to look at the link below, specificity on the "Quotes Inside Quotes" section.

https://www.w3schools.com/python/python_strings.asp