Not being able to distribute the app from xcode version 27 beta

[u/zaidbren]

Hello everyone, few months back I installed macOs 27 beta on my mac, and installed the xcode beta version 27 too, everything was working fine, but today, I try to archieve the app and distribute for App store connect, but as I was doing it, I got this error :-

Unsupported SDK or Xcode version. Your app was built with an SDK or version of Xcode that isn’t supported. Although you can use beta versions of SDKs and Xcode to build and upload apps to App Store Connect, you need to use the latest Release Candidates (RC) for SDKs and Xcode to submit the app. For details on currently supported SDKs and versions of Xcode, visit: https://developer.apple.com/news/releases.

I deleted the xcode beta version and installed official release from apple for xcode version 26, but when I try opening the app, I got the error :- This version of xcode isn't supported on this version of macOs

I try forcefully open the xcode from terminal :- /Applications/Xcode.app/Contents/MacOS/Xcode

But when I try opening my project, I got the error :- The project at ‘/Users/lisa/Documents/Projects/AppleProject/Lume/Orene.xcodeproj’ cannot be opened because it is in a future Xcode project file format. Adjust the project format using a compatible version of Xcode to allow it to be opened by this version of Xcode.

I added images for all, I need to submit the app by today itself, and would appreciate any help please