My custom App not open in this url Admin.Shopify.Com

[Sumit3916]

Hi Team,

Actually, this app running with Laravel & MySQL. Other than that, there is "React" kind of JavaScript libraries.
App completely build with Laravel and React.

Actually, our app has to load below URL,

 https://admin.shopify.com/store/testdcg2/apps/dcg-3

Instead of this, it's automatically Re-directed to,

 https://testdcg2.myshopify.com/admin/apps/dcg-3?force_legacy_domain=1

When we check "learn more", this is what we are getting,
 https://changelog.shopify.com/posts/shopify-admin-now-lives-at-admin-shopify-com

Please check this video for reference:

 https://www.awesomescreenshot.com/video/23647089?key=df7207707a0d52b2c70db5512309491f

Please let me know, if anything needs from our side.