LCS-Manager works for patch 11.18. (09.09.2021).
!! IMPORTANT: LCS-Manager installs .fantome and .zip files !!
Most common issue + fix:
Problem: LCS-manager has the status “Waiting for a League match to start” but doesn’t change any of the skins when entering a match.
Solution: Run the tool as an admin, as this is necessary for users who have LCS manager (or maybe League of Legends) installed in a directory with restricted access.
Solution 2: For users without admin access, reinstall or move the affected files into a user made directory on your hard drive (Example: C:NameOfDirectory)