The classic Xposed Installer (version 3.1.5 by rovo89) is no longer maintained. Community developers have created forked versions that fix repository issues. The most reliable is Xposed Installer by DVDandroid (often called the Material Design version).
Steps:
This fork often redirects to active community mirrors, resolving the “could not load” error instantly. xposed installer could not load available zip file
If switching installers is not an option, you can manually edit the repository URL. Some installer versions allow custom repo URLs. The classic Xposed Installer (version 3
How to do it:
Note: This option is not available in all versions. If missing, proceed to manual installation. This fork often redirects to active community mirrors,
After booting, open Xposed Installer. The error should be gone because the framework is now active. The app will just show "Installed version: v89".