SharePoint page is not loading in personal tab of app under MS Teams

I have created a Teams app and added a SharePoint page as a Teams personal tab.

I have referred to the below links for the same,

https://aakashbhardwaj619.github.io/2020/01/16/Add-SharePoint-Site-To-Teams-Personal-App.html

https://www.c-sharpcorner.com/article/sharepoint-site-as-static-app-in-ms-teams/

My SharePoint page is throwing error in the Teams app. Please refer to the below screenshot,

Can anyone help me with the same?

Thanks