AppSync Unified is a critical jailbreak tweak that allows you to install unsigned, ad-hoc, or expired IPA files on iOS. While usually hosted on Karen's (AngelXwind) official repository, users often seek the when the repo is down or for manual installation. Key Features of AppSync Unified
Normally, iOS expects apps to be installed via: appsync unified deb file exclusive
You tried to install an exclusive DEB over a repo version. Run dpkg --remove com.angelxwind.appsyncunified via SSH, then install the exclusive DEB clean. exclusive