kernel panic three times since upgrading to 10.14.6

I upgraded to 10.14.6 on July 22. After that, I had a kernel panic on July 25 and twice today. Could anyone help with it?

logs are below.

{"caused_by":"unknown","macos_version":"Mac OS X 10.14.6 (18G84)","os_version":"Bridge OS 3.6 (16P6568)","macos_system_state":"running","incident_id":"6DCB8540-C363-4FC9-999E-9E38E276621A","timestamp":"2019-07-25 15:44:33.33 +0000","bug_type":"210"}
{
  "build" : "Bridge OS 3.6 (16P6568)",
  "product" : "iBridge2,3",
  "kernel" : "Darwin Kernel Version 18.7.0: Tue Jun 25 21:35:19 PDT 2019; root:xnu-4903.270.47~9\/RELEASE_ARM64_T8010",
  "incident" : "6DCB8540-C363-4FC9-999E-9E38E276621A",
  "crashReporterKey" : "c0dec0dec0dec0dec0dec0dec0dec0dec0de0001",
  "date" : "2019-07-25 15:44:33.08 +0000",
  "panicString" : "panic(cpu 0 caller 0xfffffff01bca5bec): \"void AppleEmbeddedPCIeUpLinkMgmt::_linkInterruptAction(IOInterruptEventSource *, int): \" \"A link timeout has been seen after 100000 microseconds and 49999 iterations.\"@\/BuildRoot\/Library\/Caches\/com.apple.xbs\/Sources\/AppleEmbeddedPCIeUpLinkMgmt\/AppleEmbeddedPCIeUpLinkMgmt-76.260.2\/AppleEmbeddedPCIeUpLinkMgmt.cpp:3982\nDebugger message: panic\nMemory ID: 0x6\nOS version: 16P6568\nmacOS version: 18G84\nKernel version: Darwin Kernel Version 18.7.0: Tue Jun 25 21:35:19 PDT 2019; root:xnu-4903.270.47~9\/RELEASE_ARM64_T8010\nKernelCache UUID: DB4E28E6354462E8ADC412A804EB32E1\nKernel UUID: 9FC93C85-B7C5-3723-92B7-293273AB9C4F\niBoot version: iBoot-4513.270.14\nsecure boot?: YES\nx86 EFI Boot State: 0xe\nx86 System State: 0x0\nx86 Power State: 0x0\nx86 Shutdown Cause: 0x5\nx86 Previous Power Transitions: 0x40504000200\nPCIeUp link state: 0x94721611\nPaniclog version: 13\nKernel slide:     0x000000001559c000\nKernel text base: 0xfffffff01c5a0000\nmach_absolute_time: 0xa75d527f88\nEpoch Time:        sec       usec\n  Boot    : 0x5d37ad8f 0x000c3155\n  Sleep   : 0x5d39a45e 0x000defae\n  Wake    : 0x5d39ab5f 0x0006d1c2\n  Calendar: 0x5d39ce41 0x000cb6eb\n\nPanicked task 0xffffffe000881680: 8160 pages, 207 threads: pid 0: kernel_task\nPanicked thread: 0xffffffe000c4b3e0, backtrace: 0xffffffe01633b590, tid: 280\n\t\t  lr: 0xfffffff01c6ae2a4  fp: 0xffffffe01633b620\n\t\t  lr: 0xfffffff01c79b5a4  fp: 0xffffffe01633b760\n\t\t  lr: 0xfffffff01c679610  fp: 0xffffffe01633b770\n\t\t  lr: 0xfffffff01c6ad848  fp: 0xffffffe01633bae0\n\t\t  lr: 0xfffffff01c6adbc0  fp: 0xffffffe01633bb20\n\t\t  lr: 0xfffffff01c6ada14  fp: 0xffffffe01633bb40\n\t\t  lr: 0xfffffff01bca5bec  fp: 0xffffffe01633bbd0\n\t\t  lr: 0xfffffff01cb35fc4  fp: 0xffffffe01633bc10\n\t\t  lr: 0xfffffff01cb34ad8  fp: 0xffffffe01633bc50\n\t\t  lr: 0xfffffff01cb3434c  fp: 0xffffffe01633bc90\n\t\t  lr: 0xfffffff01c684614  fp: 0x0000000000000000\n\n",
  "panicFlags" : "0x2",
  "otherString" : "\n** Stackshot Succeeded ** Bytes Traced 112560 **\n",
  "macOSPanicFlags" : "0x0",
  "macOSPanicString" : "BAD MAGIC! (flag set in iBoot panic header), no macOS panic log available",
  "memoryStatus" : {"compressorSize":0,"compressions":0,"decompressions":0,"busyBufferCount":0,"pageSize":16384,"memoryPressure":false,"memoryPages":{"active":8141,"throttled":0,"fileBacked":10933,"wired":10886,"purgeable":0,"inactive":5798,"free":3029,"speculative":2344}},