Create Macro Hello Word With Confluence

Hello Madam, Sir,
I started to develop Macro with Confluence.

I followed the tutuoriel https://developer.atlassian.com/server/framework/atlassian-sdk/create-a-confluence-hello-world-macro/

When I start Confluence with atlas-run and I go to the link http://localhost:1990/confluence, the following error is displayed in the browser.

I have done several searches but I can’t solve this problem.

Bests Regards,
Steve William NGAHANE