We have fixed two issues in XenForo 2.1.8 which cause errors or unexpected behavior:Error relating to warning_points when rebuilding user caches
Error when sending a payment receipt with user upgrades/purchasablesWe have released XenForo 2.1.8 Patch 1 to resolve these issues.You can perform the upgrade directly from your control panel by going to Tools > Check for upgrades. You can also download the update from your Customer area.