Ejecting thunderbolt drive crashes iMac

Hello!
Hoping someone can help me with this issue. I use a LaCie thunderbolt drive (connected via thunderbolt) to keep video editing projects on, the drive functions just fine on startup and while its running, however, upon ejecting the drive my iMac crashes. When i connect the drive via USB3 the drive & my computer function normally & I can eject the drive. This is my only thunderbolt drive and the only computer I can test this on, but is something wrong with my thunderbolt I/O? Or is there a weird software issue that I'm not aware of?
Thanks in advance.
Panic Report
*** Panic Report ***
panic(cpu 2 caller 0xffffff8001c1a46e): Kernel trap at 0xffffff80020e9774, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0x0000000000000000, CR3: 0x0000000004eab000, CR4: 0x00000000001626e0
RAX: 0x0000000000070001, RBX: 0xffffff805af2f800, RCX: 0x5918107c6d4f00cd, RDX: 0xffffff839c385088
RSP: 0xffffff83a93e3e90, RBP: 0xffffff83a93e3e90, RSI: 0xffffff839c385068, RDI: 0x0000000000000000
R8:  0x00000000009873b4, R9:  0xffffff839c385068, R10: 0x000055179a4e9b14, R11: 0x0000551799b62760
R12: 0xffffff83a93e3f50, R13: 0xffffff7f8468c044, R14: 0xffffff7f846a2978, R15: 0xffffff80022d66c0
RFL: 0x0000000000010202, RIP: 0xffffff80020e9774, CS:  0x0000000000000008, SS:  0x0000000000000010
Fault CR2: 0x0000000000000000, Error code: 0x0000000000000000, Fault CPU: 0x2
Backtrace (CPU 2), Frame : Return Address
0xffffff83a93e3b40 : 0xffffff8001b2fe41
0xffffff83a93e3bc0 : 0xffffff8001c1a46e
0xffffff83a93e3d80 : 0xffffff8001c36683
0xffffff83a93e3da0 : 0xffffff80020e9774
0xffffff83a93e3e90 : 0xffffff7f8468c267
0xffffff83a93e3eb0 : 0xffffff7f8468fad7
0xffffff83a93e3ee0 : 0xffffff7f8468c1ed
0xffffff83a93e3f00 : 0xffffff8001b624f9
0xffffff83a93e3fb0 : 0xffffff8001c14dd7
      Kernel Extensions in backtrace:
         com.apple.driver.AppleAHCIPort(3.1)[93E1D2EC-50EE-3340-9676-0EA1E0B1AD45]@0xfff fff7f84688000->0xffffff7f846a2fff
            dependency: com.apple.iokit.IOAHCIFamily(2.7.5)[DAF0353B-16D5-385A-A0F3-FD5CF3BA07F2]@0xfff fff7f832b4000
            dependency: com.apple.iokit.IOPCIFamily(2.9)[56AD16B5-4F29-3F74-93E7-D492B3966DE2]@0xffffff 7f82324000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
14C109
Kernel version:
Darwin Kernel Version 14.1.0: Mon Dec 22 23:10:38 PST 2014; root:xnu-2782.10.72~2/RELEASE_X86_64
Kernel UUID: DCF5C2D5-16AE-37F5-B2BE-ED127048DFF5
Kernel slide:     0x0000000001800000
Kernel text base: 0xffffff8001a00000
__HIB  text base: 0xffffff8001900000
System model name: iMac13,2 (Mac-FC02E91DDD3FA6A4)
System uptime in nanoseconds: 93559851592794
last loaded kext at 67074349195216: com.apple.driver.AppleThunderboltPCIUpAdapter 2.0.2 (addr 0xffffff7f84730000, size 49152)
last unloaded kext at 105563789120: com.apple.driver.AirPort.Brcm4331 800.20.24 (addr 0xffffff7f83a0f000, size 2043904)
loaded kexts:
com.paceap.kext.pacesupport.snowleopard 5.9.1
com.logmein.driver.LogMeInSoundDriver 1.0.3
com.steelseries.ssenext.driver 0.49
com.apple.driver.AppleHWSensor 1.9.5d0
com.apple.filesystems.autofs 3.0
com.apple.filesystems.ntfs 3.12
com.apple.driver.AudioAUUC 1.70
com.apple.iokit.IOUserEthernet 1.0.1
com.apple.iokit.IOBluetoothSerialManager 4.3.2f6
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.ApplePlatformEnabler 2.1.7d1
com.apple.driver.AGPM 100.15.5
com.apple.driver.X86PlatformShim 1.0.0
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.3.2f6
com.apple.driver.AppleMikeyHIDDriver 124
com.apple.driver.AppleOSXWatchdog 1
com.apple.driver.AppleMikeyDriver 269.25
com.apple.driver.AppleHDA 269.25
com.apple.driver.AppleThunderboltIP 2.0.2
com.apple.driver.AppleUpstreamUserClient 3.6.1
com.apple.driver.AppleLPC 1.7.3
com.apple.GeForce 10.0.2
com.apple.driver.AppleHWAccess 1
com.apple.driver.AppleSMCLMU 2.0.7d0
com.apple.driver.AppleHV 1
com.apple.driver.AppleBacklight 170.5.0
com.apple.driver.AppleMCCSControl 1.2.11
com.apple.driver.AppleIntelHD4000Graphics 10.0.2
com.apple.driver.AppleIntelFramebufferCapri 10.0.2
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.BootCache 35
com.apple.driver.XsanFilter 404
com.apple.iokit.IOAHCIBlockStorage 2.7.0
com.apple.driver.AppleSDXC 1.6.5
com.apple.driver.AppleUSBHub 705.4.2
com.apple.iokit.AppleBCM5701Ethernet 10.1.3
com.apple.driver.AirPort.Brcm4360 910.26.12
com.apple.driver.AppleAHCIPort 3.1.0
com.apple.driver.AppleUSBEHCI 705.4.14
com.apple.driver.AppleUSBXHCI 710.4.11
com.apple.driver.AppleACPIButtons 3.1
com.apple.driver.AppleRTC 2.0
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleSMBIOS 2.1
com.apple.driver.AppleACPIEC 3.1
com.apple.driver.AppleAPIC 1.7
com.apple.driver.AppleIntelCPUPowerManagementClient 218.0.0
com.apple.nke.applicationfirewall 161
com.apple.security.quarantine 3
com.apple.security.TMSafetyNet 8
com.apple.driver.AppleIntelCPUPowerManagement 218.0.0
com.apple.driver.AppleThunderboltPCIUpAdapter 2.0.2
com.apple.kext.triggers 1.0
com.apple.iokit.IOSerialFamily 11
com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.3.2f6
com.apple.iokit.IOBluetoothFamily 4.3.2f6
com.apple.driver.DspFuncLib 269.25
com.apple.kext.OSvKernDSPLib 1.15
com.apple.nvidia.driver.NVDAGK100Hal 10.0.2
com.apple.driver.X86PlatformPlugin 1.0.0
com.apple.driver.IOPlatformPluginFamily 5.8.1d38
com.apple.driver.AppleThunderboltEDMSink 4.0.2
com.apple.driver.AppleHDAController 269.25
com.apple.iokit.IOHDAFamily 269.25
com.apple.iokit.IOAudioFamily 203.3
com.apple.vecLib.kext 1.2.0
com.apple.driver.AppleSMC 3.1.9
com.apple.nvidia.driver.NVDAResman 10.0.2
com.apple.driver.AppleSMBusPCI 1.0.12d1
com.apple.driver.AppleBacklightExpert 1.1.0
com.apple.driver.AppleSMBusController 1.0.13d1
com.apple.iokit.IOSurface 97
com.apple.iokit.IONDRVSupport 2.4.1
com.apple.iokit.IOAcceleratorFamily2 156.6
com.apple.AppleGraphicsDeviceControl 3.8.6
com.apple.iokit.IOGraphicsFamily 2.4.1
com.apple.iokit.IOUSBUserClient 705.4.0
com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.3
com.apple.driver.AppleUSBHIDKeyboard 176.2
com.apple.driver.AppleHIDKeyboard 176.2
com.apple.iokit.IOUSBHIDDriver 705.4.0
com.apple.driver.AppleUSBMergeNub 705.4.0
com.apple.driver.AppleUSBComposite 705.4.9
com.apple.driver.CoreStorage 471.10.6
com.apple.driver.AppleThunderboltDPOutAdapter 4.0.6
com.apple.driver.AppleThunderboltDPInAdapter 4.0.6
com.apple.driver.AppleThunderboltDPAdapterFamily 4.0.6
com.apple.driver.AppleThunderboltPCIDownAdapter 2.0.2
com.apple.driver.AppleThunderboltNHI 3.1.7
com.apple.iokit.IOThunderboltFamily 4.2.1
com.apple.iokit.IOEthernetAVBController 1.0.3b3
com.apple.iokit.IO80211Family 710.55
com.apple.driver.mDNSOffloadUserClient 1.0.1b8
com.apple.iokit.IONetworkingFamily 3.2
com.apple.iokit.IOAHCIFamily 2.7.5
com.apple.iokit.IOUSBFamily 710.4.14
com.apple.driver.AppleEFINVRAM 2.0
com.apple.iokit.IOHIDFamily 2.0.0
com.apple.driver.AppleEFIRuntime 2.0
com.apple.iokit.IOSMBusFamily 1.1
com.apple.security.sandbox 300.0
com.apple.kext.AppleMatch 1.0.0d1
com.apple.driver.AppleKeyStore 2
com.apple.driver.AppleMobileFileIntegrity 1.0.5
com.apple.driver.AppleCredentialManager 1.0
com.apple.driver.DiskImages 396
com.apple.iokit.IOStorageFamily 2.0
com.apple.iokit.IOReportFamily 31
com.apple.driver.AppleFDEKeyStore 28.30
com.apple.driver.AppleACPIPlatform 3.1
com.apple.iokit.IOPCIFamily 2.9
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.Libm 1
com.apple.kec.pthread 1
com.apple.kec.corecrypto 1.0
Model: iMac13,2, BootROM IM131.010A.B05, 4 processors, Intel Core i7, 3.4 GHz, 32 GB, SMC 2.11f14
Graphics: NVIDIA GeForce GTX 680MX, NVIDIA GeForce GTX 680MX, PCIe, 2048 MB
Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x857F, 0x483634314755363747313630304700000000
Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x857F, 0x483634314755363747313630304700000000
Memory Module: BANK 0/DIMM1, 8 GB, DDR3, 1600 MHz, 0x857F, 0x483634314755363747313630304700000000
Memory Module: BANK 1/DIMM1, 8 GB, DDR3, 1600 MHz, 0x857F, 0x483634314755363747313630304700000000
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xF4), Broadcom BCM43xx 1.0 (7.15.159.13.12)
Bluetooth: Version 4.3.2f6 15235, 3 services, 19 devices, 1 incoming serial ports
Network Service: Ethernet, Ethernet, en0
Serial ATA Device: APPLE HDD ST1000DM003, 1 TB
Serial ATA Device: APPLE SSD SM128E, 121.33 GB
USB Device: Rival Gaming Mouse
USB Device: Hub
USB Device: Keyboard Hub
USB Device: Apple Keyboard
USB Device: FaceTime HD Camera (Built-in)
USB Device: Hub
USB Device: Hub
USB Device: BRCM20702 Hub
USB Device: Bluetooth USB Host Controller
Thunderbolt Bus: iMac, Apple Inc., 23.4

Best case scenario is that you may just need to update a driver or firmware for the drive.
I had an old DVD player from Lacie that didn't work until I updated the firmware.
Check out their web site and download anything relevant.
Also, make sure you haven't got both Thunderbolt and USB3 cables plugged in at the
same time. The old Lacie drives only liked *ALL* Firewire or *ALL* USB serially
connected devices.
Next you should probably eliminate hardware problems one by one. Try using a different
cable, a different port and a different drive if you can get hold of / borrow one.
If all that fails or you have taken it as far as you can, contact the re-seller to see if they
can test the drive at their facilities or Lacie.

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    Kernel UUID: DCF5C2D5-16AE-37F5-B2BE-ED127048DFF5
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