My iMac is crashing, why?

I have problems with my iMac crashing all the time. Actually, it mostly happen when I'm not sitting in front of it (not working), when I come back it has just restarted and I get an error. Also, sometimes my keyboard and mouse stop working after I plug out an USB (mostly with my iPhone cable when I'm charging it). The computer works fine, I see the type | blinking etc., but I just can't do anything because the devices won't work.

Besides it, I think there might be something wrong with my audio interface (MOTU Ultralite MkIII) and the computer. I had to install 10.9.2 to get it to work fine because of the Fusion Drive issues with audio interfaces, but I think there might be some connection with the errors and the MOTU. It's plugged also via USB.

This is the error report I get when it crashes, I hope it helps:

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Anonymous UUID: 34C21872-377E-AC58-D51E-808084C6E57D

Wed Mar 26 17:41:06 2014

panic(cpu 0 caller 0xffffff8011cdbe2e): Kernel trap at 0x0000000000000000, type 14=page fault, registers:

CR0: 0x000000008001003b, CR2: 0x0000000000000000, CR3: 0x00000000149d0000, CR4: 0x00000000001606e0

RAX: 0xffffff80299bb080, RBX: 0x00000000e00002d6, RCX: 0x0000000009000000, RDX: 0xffffff80122cb540

RSP: 0xffffff8105f4bea8, RBP: 0xffffff8105f4bec0, RSI: 0x00000000e00002d6, RDI: 0xffffff80299f9900

R8: 0xffffff80275bcf10, R9: 0xffffff80122cb540, R10: 0xffffff80120b4170, R11: 0xffffff8012289ce8

R12: 0xffffff80299f9900, R13: 0xffffff8012303760, R14: 0xffffff802576db00, R15: 0xffffff80273c0e80

RFL: 0x0000000000010286, RIP: 0x0000000000000000, CS: 0x0000000000000008, SS: 0x0000000000000010

Fault CR2: 0x0000000000000000, Error code: 0x0000000000000010, Fault CPU: 0x0

Backtrace (CPU 0), Frame : Return Address

0xffffff8105f4bb30 : 0xffffff8011c22fa9

0xffffff8105f4bbb0 : 0xffffff8011cdbe2e

0xffffff8105f4bd80 : 0xffffff8011cf3326

0xffffff8105f4bda0 : 0x0

0xffffff8105f4bec0 : 0xffffff80120b0b9b

0xffffff8105f4bf20 : 0xffffff8011c4a23a

0xffffff8105f4bfb0 : 0xffffff8011cd6ff7

BSD process name corresponding to current thread: kernel_task

Mac OS version:

13C59

Kernel version:

Darwin Kernel Version 13.1.0: Thu Jan 16 19:40:37 PST 2014; root:xnu-2422.90.20~2/RELEASE_X86_64

Kernel UUID: 9FEA8EDC-B629-3ED2-A1A3-6521A1885953

Kernel slide: 0x0000000011a00000

Kernel text base: 0xffffff8011c00000

System model name: iMac14,2 (Mac-27ADBB7B4CEE8E61)

System uptime in nanoseconds: 1493113670138

last loaded kext at 1248598084511: com.apple.driver.AppleIntelMCEReporter 104 (addr 0xffffff7f9438b000, size 49152)

last unloaded kext at 732553912683: com.apple.driver.AppleIntelMCEReporter 104 (addr 0xffffff7f94375000, size 32768)

loaded kexts:

com.paceap.kext.pacesupport.snowleopard 5.7.2

com.motu.driver.FireWireAudio 1.6 59644

com.apple.driver.AppleIntelMCEReporter 104

com.apple.filesystems.msdosfs 1.9

com.apple.filesystems.smbfs 2.0.1

com.apple.driver.AppleBluetoothMultitouch 80.14

com.apple.driver.AppleHWSensor 1.9.5d0

com.apple.filesystems.autofs 3.0

com.apple.iokit.IOBluetoothSerialManager 4.2.3f9

com.apple.driver.AudioAUUC 1.60

com.apple.driver.AppleMikeyHIDDriver 124

com.apple.driver.AGPM 100.14.15

com.apple.driver.X86PlatformShim 1.0.0

com.apple.driver.ApplePlatformEnabler 2.0.9d1

com.apple.driver.AppleMikeyDriver 2.6.0f1

com.apple.driver.AppleHDA 2.6.0f1

com.apple.driver.AppleSMCLMU 2.0.4d1

com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.2.3f9

com.apple.iokit.IOUserEthernet 1.0.0d1

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.AppleHWAccess 1

com.apple.driver.AppleThunderboltIP 1.1.2

com.apple.GeForce 8.2.4

com.apple.driver.AppleLPC 1.7.0

com.apple.driver.AppleUpstreamUserClient 3.5.13

com.apple.driver.AppleBacklight 170.3.5

com.apple.driver.AppleMCCSControl 1.1.12

com.apple.driver.AppleIntelHD5000Graphics 8.2.4

com.apple.driver.AppleIntelFramebufferAzul 8.2.4

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1

com.apple.BootCache 35

com.apple.driver.AppleUSBHub 666.4.0

com.apple.driver.XsanFilter 404

com.apple.iokit.IOAHCIBlockStorage 2.5.1

com.apple.driver.AppleSDXC 1.5.2

com.apple.iokit.AppleBCM5701Ethernet 3.8.1b2

com.apple.driver.AirPort.Brcm4360 831.21.63

com.apple.driver.AppleAHCIPort 3.0.0

com.apple.driver.AppleUSBXHCI 670.4.0

com.apple.driver.AppleACPIButtons 2.0

com.apple.driver.AppleRTC 2.0

com.apple.driver.AppleHPET 1.8

com.apple.driver.AppleSMBIOS 2.1

com.apple.driver.AppleACPIEC 2.0

com.apple.driver.AppleAPIC 1.7

com.apple.nke.applicationfirewall 153

com.apple.security.quarantine 3

com.apple.driver.AppleBluetoothHIDKeyboard 170.15

com.apple.driver.AppleHIDKeyboard 170.15

com.apple.driver.IOBluetoothHIDDriver 4.2.3f9

com.apple.driver.AppleMultitouchDriver 245.13

com.apple.kext.triggers 1.0

com.apple.iokit.IOSerialFamily 10.0.7

com.apple.iokit.IOSCSIArchitectureModelFamily 3.6.6

com.apple.driver.DspFuncLib 2.6.0f1

com.apple.vecLib.kext 1.0.0

com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.2.3f9

com.apple.iokit.IOFireWireFamily 4.5.5

com.apple.iokit.IOAudioFamily 1.9.5fc2

com.apple.kext.OSvKernDSPLib 1.14

com.apple.iokit.IOBluetoothFamily 4.2.3f9

com.apple.driver.AppleThunderboltEDMSink 2.1.3

com.apple.driver.AppleSMBusPCI 1.0.12d1

com.apple.iokit.IOAcceleratorFamily 98.13

com.apple.driver.X86PlatformPlugin 1.0.0

com.apple.driver.AppleSMC 3.1.8

com.apple.driver.IOPlatformPluginFamily 5.7.0d10

com.apple.nvidia.driver.NVDAGK100Hal 8.2.4

com.apple.nvidia.driver.NVDAResman 8.2.4

com.apple.driver.AppleBacklightExpert 1.0.4

com.apple.driver.AppleSMBusController 1.0.11d1

com.apple.driver.AppleHDAController 2.6.0f1

com.apple.iokit.IOHDAFamily 2.6.0f1

com.apple.iokit.IOSurface 91

com.apple.AppleGraphicsDeviceControl 3.4.35

com.apple.iokit.IOAcceleratorFamily2 98.13

com.apple.iokit.IONDRVSupport 2.4.1

com.apple.iokit.IOGraphicsFamily 2.4.1

com.apple.iokit.IOUSBHIDDriver 660.4.0

com.apple.driver.AppleUSBMergeNub 650.4.0

com.apple.driver.AppleUSBComposite 656.4.1

com.apple.driver.AppleThunderboltDPOutAdapter 3.1.7

com.apple.driver.AppleThunderboltDPInAdapter 3.1.7

com.apple.driver.AppleThunderboltDPAdapterFamily 3.1.7

com.apple.driver.AppleThunderboltPCIDownAdapter 1.4.5

com.apple.driver.CoreStorage 380

com.apple.iokit.IOUSBUserClient 660.4.2

com.apple.driver.AppleThunderboltNHI 2.0.1

com.apple.iokit.IOThunderboltFamily 3.2.7

com.apple.iokit.IOEthernetAVBController 1.0.3b4

com.apple.iokit.IO80211Family 630.35

com.apple.driver.mDNSOffloadUserClient 1.0.1b5

com.apple.iokit.IONetworkingFamily 3.2

com.apple.iokit.IOAHCIFamily 2.6.5

com.apple.iokit.IOUSBFamily 675.4.0

com.apple.driver.AppleEFINVRAM 2.0

com.apple.driver.AppleEFIRuntime 2.0

com.apple.iokit.IOHIDFamily 2.0.0

com.apple.iokit.IOSMBusFamily 1.1

com.apple.security.sandbox 278.11

com.apple.kext.AppleMatch 1.0.0d1

com.apple.security.TMSafetyNet 7

com.apple.driver.AppleKeyStore 2

com.apple.driver.DiskImages 371.1

com.apple.iokit.IOStorageFamily 1.9

com.apple.iokit.IOReportFamily 23

com.apple.driver.AppleFDEKeyStore 28.30

com.apple.driver.AppleACPIPlatform 2.0

com.apple.iokit.IOPCIFamily 2.9

com.apple.iokit.IOACPIFamily 1.4

com.apple.kec.pthread 1

com.apple.kec.corecrypto 1.0

System Profile:

Model: iMac14,2, BootROM IM142.0108.B02, 4 processors, Intel Core i7, 3.5 GHz, 8 GB, SMC 2.15f2

Graphics: NVIDIA GeForce GTX 775M, NVIDIA GeForce GTX 775M, PCIe, 2048 MB

Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54343531533641465238412D50422020

Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54343531533641465238412D50422020

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x111), Broadcom BCM43xx 1.0 (6.30.223.154.63)

Bluetooth: Version 4.2.3f9 13296, 3 services, 23 devices, 1 incoming serial ports

Network Service: Wi-Fi, AirPort, en1

Serial ATA Device: APPLE SSD SD0128F, 121.33 GB

Serial ATA Device: APPLE HDD WD10EZES-40UFAA0, 1 TB

USB Device: BRCM20702 Hub

USB Device: Bluetooth USB Host Controller

USB Device: FaceTime HD Camera (Built-in)

USB Device: Intuos5 touch S

USB Device: UltraLite mk3

Thunderbolt Bus: iMac, Apple Inc., 23.10

Model: iMac14,2, BootROM IM142.0108.B02, 4 processors, Intel Core i7, 3.5 GHz, 8 GB, SMC 2.15f2

Graphics: NVIDIA GeForce GTX 775M, NVIDIA GeForce GTX 775M, PCIe, 2048 MB

Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54343531533641465238412D50422020

Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54343531533641465238412D50422020

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x111), Broadcom BCM43xx 1.0 (6.30.223.154.63)

Bluetooth: Version 4.2.3f9 13296, 3 services, 23 devices, 1 incoming serial ports

Network Service: Wi-Fi, AirPort, en1

Serial ATA Device: APPLE SSD SD0128F, 121,33 GB

Serial ATA Device: APPLE HDD WD10EZES-40UFAA0, 1 TB

USB Device: BRCM20702 Hub

USB Device: Bluetooth USB Host Controller

USB Device: FaceTime HD Camera (Built-in)

USB Device: Intuos5 touch S

USB Device: UltraLite mk3

Thunderbolt Bus: iMac, Apple Inc., 23.10