[Q] Xposed won't install topic

I have tried installing it and to no avail. I have root and am S-OFF. This is the error message I get in red at the top of Framework page. "app_process version "58" has been installed previously but version "--" was found now. If you didn't expect an old file to be restored, you might want to try installing via recovery (auto or manual)

How can I fix this?