Create simple facebook app code

Hello, excuse my English. I need a code to create an app for facebook. The application has a page with the functions needed to create an application on Facebook. Note : [login to view URL] code should be Constructed based on the latest version of PHP SDK FACEBOOK [login to view URL] PHP code should not contain security failure. 3.I have seen these errors in the "error log" from my server: error 01 - OAuthException: Error validating access token: Session has expired error 02 - OAuthException: Error validating access token: The session is invalid because the user logged October referer :. Https: //apps.facebook. with / " I want these errors are corrected in the new code. Another problem I have is this: I have some applications, but they have been excluded by facebook The reason is always the same "We've disabled your app for creating a negative experience on Facebook in Violation of our policies ([login to view URL]). Common violations include Sending Out excessive requests or notifications, auto-posting without consent, and pre-filling content. " I want these problems to be solved in this new code Please download the images to better understand what I need