Error when creating performance template

Summary:

Hello,

We have a requirement to create a performance document with only 1 task - The overall summary section.

This is because we'll be loading the rating by using HDL as it is for previous years.

When we're creating the template and add the section, we're facing the below error.

Please advice.

Thanks

Below are the settings for the section:

Content (required):

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):