Kernel panic, second night in a row

It's basically a newly bought iMac and I'm getting this second night in a row

Any ideas?

nonymous UUID: 63B7FCD1-B786-3CC2-DC12-175C12B35668

Sun Apr 29 03:38:10 2018

*** Panic Report ***

panic(cpu 0 caller 0xffffff7f9389c275): "UPSB(iMac18,3): thunderbolt power on failed 0xffffffff\n"@/BuildRoot/Library/Caches/com.apple.xbs/Sources/IOPCIFamily/IOPCI Family-320.50.3/IOPCIBridge.cpp:1306

Backtrace (CPU 0), Frame : Return Address

0xffffff9236f9ba80 : 0xffffff801306e166

0xffffff9236f9bad0 : 0xffffff8013196714

0xffffff9236f9bb10 : 0xffffff8013188a00

0xffffff9236f9bb90 : 0xffffff8013020180

0xffffff9236f9bbb0 : 0xffffff801306dbdc

0xffffff9236f9bce0 : 0xffffff801306d99c

0xffffff9236f9bd40 : 0xffffff7f9389c275

0xffffff9236f9bdb0 : 0xffffff7f9389cdca

0xffffff9236f9bdd0 : 0xffffff7f9389b0bf

0xffffff9236f9be20 : 0xffffff7f938a59f1

0xffffff9236f9be40 : 0xffffff801367f785

0xffffff9236f9beb0 : 0xffffff801367f52a

0xffffff9236f9bed0 : 0xffffff80130a77e4

0xffffff9236f9bf40 : 0xffffff80130a7345

0xffffff9236f9bfa0 : 0xffffff801301f4f7

Kernel Extensions in backtrace:

com.apple.iokit.IOPCIFamily(2.9)[1850E7DA-E707-3027-A3AA-637C80B57219]@0xffffff 7f93894000->0xffffff7f938c8fff

BSD process name corresponding to current thread: kernel_task

Mac OS version:

17E199

Kernel version:

Darwin Kernel Version 17.5.0: Mon Mar 5 22:24:32 PST 2018; root:xnu-4570.51.1~1/RELEASE_X86_64

Kernel UUID: 1B55340B-0B14-3026-8A47-1E139DB63DA3

Kernel slide: 0x0000000012e00000

Kernel text base: 0xffffff8013000000

__HIB text base: 0xffffff8012f00000

System model name: iMac18,3 (Mac-BE088AF8C5EB4FA2)

System uptime in nanoseconds: 18808458464477

last loaded kext at 18336377144278: com.apple.driver.usb.cdc 5.0.0 (addr 0xffffff7f9517b000, size 28672)

last unloaded kext at 17194475035685: com.apple.driver.usb.cdc 5.0.0 (addr 0xffffff7f9517b000, size 28672)

loaded kexts:

com.apple.driver.AppleTopCaseHIDEventDriver 133

com.apple.driver.AppleUpstreamUserClient 3.6.5

com.apple.kext.AMDFramebuffer 1.6.6

com.apple.kext.AMDRadeonX4000 1.6.6

com.apple.driver.AudioAUUC 1.70

com.apple.driver.AppleGraphicsDevicePolicy 3.18.48

com.apple.AGDCPluginDisplayMetrics 3.18.48

com.apple.driver.AppleHV 1

com.apple.iokit.IOUserEthernet 1.0.1

com.apple.iokit.IOBluetoothSerialManager 6.0.5f3

com.apple.driver.ApplePlatformEnabler 2.7.0d0

com.apple.driver.AGPM 110.23.33

com.apple.driver.X86PlatformShim 1.0.0

com.apple.driver.pmtelemetry 1

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.AppleIntelKBLGraphics 10.3.2

com.apple.driver.AppleHDA 281.51

com.apple.kext.AMD9500Controller 1.6.6

com.apple.driver.AppleThunderboltIP 3.1.1

com.apple.iokit.AppleBCM5701Ethernet 10.3.1

com.apple.iokit.BroadcomBluetooth20703USBTransport 6.0.5f3

com.apple.driver.AppleIntelPCHPMC 2.0.1

com.apple.driver.AirPort.BrcmNIC 1240.29.1a7

com.apple.driver.AppleOSXWatchdog 1

com.apple.driver.eficheck 1

com.apple.driver.AppleSMCLMU 211

com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0

com.apple.driver.AppleIntelKBLGraphicsFramebuffer 10.3.2

com.apple.driver.AppleMCCSControl 1.5.4

com.apple.filesystems.autofs 3.0

com.apple.filesystems.hfs.kext 407.50.6

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.BootCache 40

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0

com.apple.filesystems.apfs 748.51.0

com.apple.driver.AppleSDXC 1.7.6

com.apple.driver.AppleAHCIPort 329.50.2

com.apple.driver.AppleACPIButtons 6.1

com.apple.driver.AppleRTC 2.0

com.apple.driver.AppleSMBIOS 2.1

com.apple.driver.AppleACPIEC 6.1

com.apple.driver.AppleAPIC 1.7

com.apple.nke.applicationfirewall 183

com.apple.security.TMSafetyNet 8

com.apple.security.quarantine 3

com.apple.driver.usb.cdc 5.0.0

com.apple.driver.AppleHIDKeyboard 205

com.apple.driver.AppleMultitouchDriver 1404.4

com.apple.driver.AppleInputDeviceSupport 1404.3

com.apple.driver.AppleHSBluetoothDriver 133

com.apple.driver.IOBluetoothHIDDriver 6.0.5f3

com.apple.kext.AMDRadeonX4200HWLibs 1.0

com.apple.kext.AMDRadeonX4000HWServices 1.6.6

com.apple.driver.AppleGraphicsControl 3.18.48

com.apple.iokit.IOAVBFamily 675.6

com.apple.plugin.IOgPTPPlugin 675.12

com.apple.driver.AppleSSE 1.0

com.apple.iokit.IOSerialFamily 11

com.apple.driver.DspFuncLib 281.51

com.apple.kext.OSvKernDSPLib 526

com.apple.AppleGPUWrangler 3.18.48

com.apple.iokit.IOEthernetAVBController 1.1.0

com.apple.driver.AppleHDAController 281.51

com.apple.iokit.IOHDAFamily 281.51

com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 6.0.5f3

com.apple.iokit.IOBluetoothHostControllerUSBTransport 6.0.5f3

com.apple.iokit.IOBluetoothHostControllerTransport 6.0.5f3

com.apple.iokit.IOBluetoothFamily 6.0.5f3

com.apple.driver.AppleSMBusPCI 1.0.14d1

com.apple.iokit.IOAudioFamily 206.5

com.apple.vecLib.kext 1.2.0

com.apple.iokit.IONDRVSupport 519.15

com.apple.iokit.IO80211Family 1200.12.2

com.apple.driver.mDNSOffloadUserClient 1.0.1b8

com.apple.driver.corecapture 1.0.4

com.apple.kext.AMDSupport 1.6.6

com.apple.driver.X86PlatformPlugin 1.0.0

com.apple.driver.IOPlatformPluginFamily 6.0.0d8

com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0

com.apple.AppleGraphicsDeviceControl 3.18.48

com.apple.iokit.IOAcceleratorFamily2 378.18.1

com.apple.iokit.IOSurface 211.12

com.apple.driver.AppleSMBusController 1.0.18d1

com.apple.iokit.IOGraphicsFamily 519.15

com.apple.kext.triggers 1.0

com.apple.driver.usb.networking 5.0.0

com.apple.driver.usb.AppleUSBHostCompositeDevice 1.2

com.apple.filesystems.hfs.encodings.kext 1

com.apple.driver.AppleThunderboltPCIDownAdapter 2.1.3

com.apple.driver.AppleThunderboltDPInAdapter 5.5.3

com.apple.driver.AppleThunderboltDPAdapterFamily 5.5.3

com.apple.driver.AppleHPM 3.1.3

com.apple.driver.AppleIntelLpssI2CController 3.0.60

com.apple.driver.AppleIntelLpssDmac 3.0.60

com.apple.driver.AppleThunderboltNHI 4.7.2

com.apple.iokit.IOThunderboltFamily 6.7.8

com.apple.iokit.IONVMeFamily 2.1.0

com.apple.driver.AppleIntelLpssI2C 3.0.60

com.apple.driver.usb.AppleUSBHostPacketFilter 1.0

com.apple.iokit.IOUSBFamily 900.4.1

com.apple.iokit.IOAHCIFamily 288

com.apple.driver.usb.AppleUSBXHCIPCI 1.2

com.apple.driver.usb.AppleUSBXHCI 1.2

com.apple.driver.AppleEFINVRAM 2.1

com.apple.driver.AppleEFIRuntime 2.1

com.apple.iokit.IOHIDFamily 2.0.0

com.apple.iokit.IOSMBusFamily 1.1

com.apple.security.sandbox 300.0

com.apple.kext.AppleMatch 1.0.0d1

com.apple.driver.DiskImages 480.50.10

com.apple.driver.AppleFDEKeyStore 28.30

com.apple.driver.AppleEffaceableStorage 1.0

com.apple.driver.AppleKeyStore 2

com.apple.driver.AppleUSBTDM 439.50.6

com.apple.driver.AppleMobileFileIntegrity 1.0.5

com.apple.iokit.IOUSBMassStorageDriver 140.50.3

com.apple.iokit.IOSCSIBlockCommandsDevice 404.30.2

com.apple.iokit.IOSCSIArchitectureModelFamily 404.30.2

com.apple.iokit.IOStorageFamily 2.1

com.apple.driver.AppleCredentialManager 1.0

com.apple.driver.KernelRelayHost 1

com.apple.iokit.IOUSBHostFamily 1.2

com.apple.driver.usb.AppleUSBCommon 1.0

com.apple.driver.AppleBusPowerController 1.0

com.apple.driver.AppleSEPManager 1.0.1

com.apple.driver.IOSlaveProcessor 1

com.apple.iokit.IOTimeSyncFamily 675.12

com.apple.iokit.IONetworkingFamily 3.4

com.apple.iokit.IOReportFamily 31

com.apple.driver.AppleACPIPlatform 6.1

com.apple.driver.AppleSMC 3.1.9

com.apple.iokit.IOPCIFamily 2.9

com.apple.iokit.IOACPIFamily 1.4

com.apple.kec.pthread 1

com.apple.kec.Libm 1

com.apple.kec.corecrypto 1.0

EOF

Model: iMac18,3, BootROM IM183.0157.B00, 4 processors, Intel Core i7, 4,2 GHz, 16 GB, SMC 2.41f1

Graphics: Radeon Pro 575, Radeon Pro 575, PCIe

Memory Module: BANK 0/DIMM0, 8 GB, DDR4, 2400 MHz, 0x802C, 0x3841544631473634485A2D324733423220202020

Memory Module: BANK 1/DIMM0, 8 GB, DDR4, 2400 MHz, 0x802C, 0x3841544631473634485A2D324733423220202020

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x16F), Broadcom BCM43xx 1.0 (7.77.37.29.1a7)

Bluetooth: Version 6.0.5f3, 3 services, 27 devices, 1 incoming serial ports

Network Service: Wi-Fi, AirPort, en1

USB Device: USB 3.0 Bus

USB Device: StoreJet Transcend

USB Device: Bluetooth USB Host Controller

USB Device: FaceTime HD Camera (Built-in)

Thunderbolt Bus: iMac, Apple Inc., 33.1