Team center is opening with a blank screen Webview is opening perfectly fine (APM 10.7)
Also i checked the EM logs these lines i found there,
DB version is 10.5.2.0, while your application has version 10.7. Denying to start ATC.
DB is not available. Next attempt to retry to connect in 15 seconds.
Also attaching the screenshot of error i get in team center.