I flashed the Xposed framework, and installed the Xposed installer APK, but when I open the app and check the framework status, it tells me that Xposed is not compatible with SDK v23 or my processor architecture…
You need to download the appropriate version of Xposed that suites your android version.
You probably tried to install xposed for SDK22. Lollipop is SDK22, Marshmallow is SDK23.
Try Xposed for SDK23, this should work