Refused to display  in a frame because an ancestor violates the following Content Security Policy directive: "frame-ancestors 'self'".

How to fix this issue,Due to iframe this error was coming 

Hi All,

  I was deleted some pages and classes from managed package, and made a version 3.0 and uploading to appexchange after security review. Now I need to be added those deleted components again to managed package because we couldn’t upgrade the app from lower version to latest version by missing components. It saying the error is

"Salesforce has blocked this package upgrade because the new package version removes some Apex code that one or more Visualforce pages or global Visualforce components need in order to function. Please contact your partner with this error information."

I have checked with the "View deleted components" tab in package there i can only see the components and no option to undelete from there.




And i have checked with recycle bin there i couldn't see my deleted components. 

Can any one guide me in dealing with this error.

Pls Urgent!

Thanks in advance!