ExtentHtml.html is coming up with broken link in intellij #21

As per your instructions from the following link
https://github.com/extent-framework/examples/tree/master/extentreports-testng-adapter-example
i am able to generate Extent report in intelliJ IDE on window 10 platform
and i am using following dependencies

com.aventstack
extentreports
4.0.9


com.aventstack
extentreports-testng-adapter
1.2.2

but the issue is i am getting a broken link of 'ExtentHtml.html' file as shown in the attachement

Kindly check and help on resolving this issue and the issue is same on all browsers