Problem with install application

Hi,
I have a problem installing the application. The application consists of a backend part (spring boot) and a frontend part (react). This has been uploaded to google cloud. During installation on jira, an error appears: Problem accessing the file https://timezee-new-test.eyzee.com/. and nothing more. Can you trace what is happening? application link: https://timezee-new-test.eyzee.com