App crashed iPhone OS 15.1

{ "uptime" : 68000, "procLaunch" : "2021-11-25 04:51:40.7052 +0800", "procRole" : "Foreground", "version" : 2, "userID" : 501, "deployVersion" : 210, "modelCode" : "iPad7,5", "procStartAbsTime" : 1636997439442, "coalitionID" : 1417, "osVersion" : { "isEmbedded" : true, "train" : "iPhone OS 15.1", "releaseType" : "User", "build" : "19B74" }, "exception" : {"codes":"0x0000000000000000, 0x0000000000000000","rawCodes":[0,0],"type":"EXC_CRASH","signal":"SIGKILL"}, "termination" : {"code":2343432205,"flags":6,"namespace":"FRONTBOARD","reasons":["<RBSTerminateContext| domain:10 code:0x8BADF00D explanation:scene-create watchdog transgression: application<com.yifan.tangren>:3958 exhausted real (wall clock) time allowance of 19.32 seconds","ProcessVisibility: Foreground","ProcessState: Running","WatchdogEvent: scene-create","WatchdogVisibility: Foreground","WatchdogCPUStatistics: (",""Elapsed total CPU time (seconds): 13.800 (user 13.800, system 0.000), 36% CPU",",""Elapsed application CPU time (seconds): 0.073, 0% CPU"",") reportType:CrashLog maxTerminationResistance:Interactive>"]}, "ktriageinfo" : "VM - Fault hit memory shortage\nVM - Fault hit memory shortage\nVM - Fault hit memory shortage\nVM - Fault hit memory shortage\nVM - Fault hit memory shortage\n", "faultingThread" : 0, "threads" : 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