For SquadOV to work properly, you must install and enable a combat logger addon. For WoW retail, we recommend you install the Simple Combat Logger addon. Additionally, in your World of Warcraft settings menu, enable the Advanced Combat Logging option under the "System" and "Network" submenus. You must also disable any other addons (or their features) that may enable the combat log (Method Raid Tools, LoggerHead, Arena Combat Logger, etc.).