Bittorrent continue to crash

So let me get straight to the point: - Since last month, bittorrent keep on crashing over and over.

Running online analyze system: http://www.osronline.com

I got this:

*** The OS name list needs to be updated! Unknown Windows version: 6.3 ***

FAULTING_IP: 
BitTorrent+5b1a7
0045b1a7 83250000000000  and     dword ptr ds:[0],0

EXCEPTION_RECORD:  ffffffff -- (.exr 0xffffffffffffffff)
ExceptionAddress: 0045b1a7 (BitTorrent+0x0005b1a7)
ExceptionCode: c0000005 (Access violation)
ExceptionFlags: 00000000
NumberParameters: 2
   Parameter[0]: 00000001
   Parameter[1]: 00000000
Attempt to write to address 00000000

DEFAULT_BUCKET_ID:  NULL_POINTER_WRITE

PROCESS_NAME:  BitTorrent.exe

ERROR_CODE: (NTSTATUS) 0xc0000005 - The instruction at "0x%08lx" referenced memory at "0x%08lx". The memory could not be "%s".

EXCEPTION_CODE: (NTSTATUS) 0xc0000005 - The instruction at "0x%08lx" referenced memory at "0x%08lx". The memory could not be "%s".

EXCEPTION_PARAMETER1:  00000001

EXCEPTION_PARAMETER2:  00000000

WRITE_ADDRESS:  00000000 

FOLLOWUP_IP: 
BitTorrent+5b1a7
0045b1a7 83250000000000  and     dword ptr ds:[0],0

NTGLOBALFLAG:  0

FAULTING_THREAD:  00000858

PRIMARY_PROBLEM_CLASS:  NULL_POINTER_WRITE

BUGCHECK_STR:  APPLICATION_FAULT_NULL_POINTER_WRITE

LAST_CONTROL_TRANSFER:  from 004687ca to 0045b1a7

STACK_TEXT:  
WARNING: Stack unwind information not available. Following frames may be wrong.
0b63fd34 004687ca 48656f70 0b63fe48 00000000 BitTorrent+0x5b1a7
0b63fdd4 76f96896 7c038020 00000018 00000000 BitTorrent+0x687ca
0b63fe50 00468f66 48656f70 004589d2 0b63ff28 KERNELBASE!GetFileAttributesW+0xbe
0b63feb8 00486f44 00656c40 6b6b8020 0400fc6d BitTorrent+0x68f66
0b63ff5c 0056e639 1f205ab8 01000000 00000000 BitTorrent+0x86f44
0b63ff80 77a97c04 00000000 77a97be0 d95c4b2f BitTorrent+0x16e639
0b63ff94 77e5ad8f 00000000 c538224e 00000000 kernel32!BaseThreadInitThunk+0x24
0b63ffdc 77e5ad5a ffffffff 77e400c5 00000000 ntdll!__RtlUserThreadStart+0x2f
0b63ffec 00000000 0056e61d 00000000 00000000 ntdll!_RtlUserThreadStart+0x1b


SYMBOL_STACK_INDEX:  0

SYMBOL_NAME:  BitTorrent+5b1a7

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: BitTorrent

IMAGE_NAME:  BitTorrent.exe

DEBUG_FLR_IMAGE_TIMESTAMP:  58d59be4

STACK_COMMAND:  ~50s; .ecxr ; kb

FAILURE_BUCKET_ID:  NULL_POINTER_WRITE_c0000005_BitTorrent.exe!Unknown

BUCKET_ID:  APPLICATION_FAULT_NULL_POINTER_WRITE_BitTorrent+5b1a7

WATSON_STAGEONE_URL:  http://watson.microsoft.com/StageOne/BitTorrent_exe/7_10_0_43581/58d59be4/BitTorrent_exe/7_10_0_43581/58d59be4/c0000005/0005b1a7.htm?Retriage=1

Followup: MachineOwner

Does anyone out there know what happened?

Should I spend a day reinstalling Windows? I have Windows 8.1 Pro licensed. I have no problem flushing them all, but avoid because I'm lazy & have no idea if it'd fix the problem.

Let me know, mates.