Xcode Error, after I close the simulator I see this error

Question

CoreSimulator 732.18.6 - Device: iPhone 12 Pro Max (B0CA6F06-B4A2-4485-AF6F-57EF0B5BABD5) - Runtime: iOS 14.3 (18C61) - DeviceType: iPhone 12 Pro Max (lldb)

Never see