Crash on Mac os 10.9.4

I experienced lots of crashes, usually when searching files. Here's the log.

Thx

Process: SoulseekQt [3209]
Path: /Applications/SoulseekQt.app/Contents/MacOS/SoulseekQt
Identifier: Nir.SoulseekQt
Version: ???
Code Type: X86-64 (Native)
Parent Process: launchd [167]
Responsible: SoulseekQt [3209]
User ID: 501

Date/Time: 2014-09-18 23:00:40.022 +0200
OS Version: Mac OS X 10.9.4 (13E28)
Report Version: 11
Anonymous UUID: 3579DE09-E065-1137-B55C-0700C0604DB0

Sleep/Wake UUID: B0473E96-8D7E-4F58-A7E1-1868323CF364

Crashed Thread: 14 DownloadThread

Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x000000410441119a

VM Regions Near 0x410441119a:
CG shared images 00000001c871f000-00000001c8727000 [ 32K] r--/r-- SM=SHM
-->
MALLOC_NANO 0000600000000000-0000600000200000 [ 2048K] rw-/rwx SM=COW

Thread 0:: Dispatch queue: com.apple.main-thread
0 com.apple.CoreFoundation 0x00007fff9359fdcb __CFRunLoopCollectSources0 + 27
1 com.apple.CoreFoundation 0x00007fff9358d382 __CFSetApplyFunction_block_invoke + 18
2 com.apple.CoreFoundation 0x00007fff935718fc CFBasicHashApply + 124
3 com.apple.CoreFoundation 0x00007fff9358d33d CFSetApplyFunction + 173
4 com.apple.CoreFoundation 0x00007fff9359fbdb __CFRunLoopDoSources0 + 107
5 com.apple.CoreFoundation 0x00007fff9359f3ef __CFRunLoopRun + 831
6 com.apple.CoreFoundation 0x00007fff9359ee75 CFRunLoopRunSpecific + 309
7 com.apple.HIToolbox 0x00007fff93b6da0d RunCurrentEventLoopInMode + 226
8 com.apple.HIToolbox 0x00007fff93b6d7b7 ReceiveNextEventCommon + 479
9 com.apple.HIToolbox 0x00007fff93b6d5bc _BlockUntilNextEventMatchingListInModeWithFilter + 65
10 com.apple.AppKit 0x00007fff8f95724e _DPSNextEvent + 1434
11 com.apple.AppKit 0x00007fff8f95689b -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 122
12 com.apple.AppKit 0x00007fff8f94a99c -[NSApplication run] + 553
13 libqcocoa.dylib 0x00000001062fa1d4 0x1062db000 + 127444
14 QtCore 0x0000000103fedacd QEventLoop::exec(QFlags) + 381
15 QtCore 0x0000000103ff1007 QCoreApplication::exec() + 359
16 Nir.SoulseekQt 0x0000000103454911 main + 3489
17 Nir.SoulseekQt 0x0000000103453b64 start + 52

Thread 1:: Dispatch queue: com.apple.libdispatch-manager
0 libsystem_kernel.dylib 0x00007fff9aabc662 kevent64 + 10
1 libdispatch.dylib 0x00007fff9650d421 _dispatch_mgr_invoke + 239
2 libdispatch.dylib 0x00007fff9650d136 _dispatch_mgr_thread + 52

Thread 2:: com.apple.CFSocket.private
0 libsystem_kernel.dylib 0x00007fff9aabb9aa __select + 10
1 com.apple.CoreFoundation 0x00007fff935eba03 __CFSocketManager + 867
2 libsystem_pthread.dylib 0x00007fff8dc9d899 _pthread_body + 138
3 libsystem_pthread.dylib 0x00007fff8dc9d72a _pthread_start + 137
4 libsystem_pthread.dylib 0x00007fff8dca1fc9 thread_start + 13

Thread 3:: Qt bearer thread
0 libsystem_kernel.dylib 0x00007fff9aabb9aa __select + 10
1 QtCore 0x0000000104043e73 qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) + 547
2 QtCore 0x0000000104044db8 QEventDispatcherUNIXPrivate::doSelect(QFlags, timespec*) + 680
3 QtCore 0x0000000104045e5b QEventDispatcherUNIX::processEvents(QFlags) + 251
4 QtCore 0x0000000103fedacd QEventLoop::exec(QFlags) + 381
5 QtCore 0x0000000103de51ce QThread::exec() + 126
6 QtCore 0x0000000103de9542 0x103db6000 + 210242
7 libsystem_pthread.dylib 0x00007fff8dc9d899 _pthread_body + 138
8 libsystem_pthread.dylib 0x00007fff8dc9d72a _pthread_start + 137
9 libsystem_pthread.dylib 0x00007fff8dca1fc9 thread_start + 13

Thread 4:: QThread
0 libsystem_kernel.dylib 0x00007fff9aabb9aa __select + 10
1 QtCore 0x0000000104043e73 qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) + 547
2 QtCore 0x0000000104044db8 QEventDispatcherUNIXPrivate::doSelect(QFlags, timespec*) + 680
3 QtCore 0x0000000104045e5b QEventDispatcherUNIX::processEvents(QFlags) + 251
4 QtCore 0x0000000103fedacd QEventLoop::exec(QFlags) + 381
5 QtCore 0x0000000103de51ce QThread::exec() + 126
6 QtCore 0x0000000103de9542 0x103db6000 + 210242
7 libsystem_pthread.dylib 0x00007fff8dc9d899 _pthread_body + 138
8 libsystem_pthread.dylib 0x00007fff8dc9d72a _pthread_start + 137
9 libsystem_pthread.dylib 0x00007fff8dca1fc9 thread_start + 13

Thread 5:: QThread
0 libsystem_kernel.dylib 0x00007fff9aabb9aa __select + 10
1 QtCore 0x0000000104043e73 qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) + 547
2 QtCore 0x0000000104044db8 QEventDispatcherUNIXPrivate::doSelect(QFlags, timespec*) + 680
3 QtCore 0x0000000104045e5b QEventDispatcherUNIX::processEvents(QFlags) + 251
4 QtCore 0x0000000103fedacd QEventLoop::exec(QFlags) + 381
5 QtCore 0x0000000103de51ce QThread::exec() + 126
6 QtCore 0x0000000103de9542 0x103db6000 + 210242
7 libsystem_pthread.dylib 0x00007fff8dc9d899 _pthread_body + 138
8 libsystem_pthread.dylib 0x00007fff8dc9d72a _pthread_start + 137
9 libsystem_pthread.dylib 0x00007fff8dca1fc9 thread_start + 13

Thread 6:
0 libsystem_kernel.dylib 0x00007fff9aab7a1a mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff9aab6d18 mach_msg + 64
2 com.apple.CoreFoundation 0x00007fff9359ff15 __CFRunLoopServiceMachPort + 181
3 com.apple.CoreFoundation 0x00007fff9359f539 __CFRunLoopRun + 1161
4 com.apple.CoreFoundation 0x00007fff9359ee75 CFRunLoopRunSpecific + 309
5 com.apple.AppKit 0x00007fff8faf705e _NSEventThread + 144
6 libsystem_pthread.dylib 0x00007fff8dc9d899 _pthread_body + 138
7 libsystem_pthread.dylib 0x00007fff8dc9d72a _pthread_start + 137
8 libsystem_pthread.dylib 0x00007fff8dca1fc9 thread_start + 13

Thread 7:: Qt HTTP thread
0 libsystem_kernel.dylib 0x00007fff9aabb9aa __select + 10
1 QtCore 0x0000000104043e73 qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) + 547
2 QtCore 0x0000000104044db8 QEventDispatcherUNIXPrivate::doSelect(QFlags, timespec*) + 680
3 QtCore 0x0000000104045e5b QEventDispatcherUNIX::processEvents(QFlags) + 251
4 QtCore 0x0000000103fedacd QEventLoop::exec(QFlags) + 381
5 QtCore 0x0000000103de51ce QThread::exec() + 126
6 QtCore 0x0000000103de9542 0x103db6000 + 210242
7 libsystem_pthread.dylib 0x00007fff8dc9d899 _pthread_body + 138
8 libsystem_pthread.dylib 0x00007fff8dc9d72a _pthread_start + 137
9 libsystem_pthread.dylib 0x00007fff8dca1fc9 thread_start + 13

Thread 8:: DownloadThread
0 libsystem_kernel.dylib 0x00007fff9aabb9aa __select + 10
1 libsystem_c.dylib 0x00007fff95666be0 pselect$1050 + 183
2 QtCore 0x0000000104043cb7 qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) + 103
3 QtNetwork 0x0000000104413b18 0x104371000 + 666392
4 QtNetwork 0x000000010441119a 0x104371000 + 655770
5 QtNetwork 0x0000000104407514 QAbstractSocket::waitForReadyRead(int) + 228
6 Nir.SoulseekQt 0x000000010355e575 DownloadThread::PerformDownload() + 725
7 Nir.SoulseekQt 0x000000010355e1a3 DownloadThread::run() + 19
8 QtCore 0x0000000103de9542 0x103db6000 + 210242
9 libsystem_pthread.dylib 0x00007fff8dc9d899 _pthread_body + 138
10 libsystem_pthread.dylib 0x00007fff8dc9d72a _pthread_start + 137
11 libsystem_pthread.dylib 0x00007fff8dca1fc9 thread_start + 13

Thread 9:
0 libsystem_kernel.dylib 0x00007fff9aabbe6a __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x00007fff8dc9ef08 _pthread_wqthread + 330
2 libsystem_pthread.dylib 0x00007fff8dca1fb9 start_wqthread + 13

Thread 10:
0 libsystem_kernel.dylib 0x00007fff9aabbe6a __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x00007fff8dc9ef08 _pthread_wqthread + 330
2 libsystem_pthread.dylib 0x00007fff8dca1fb9 start_wqthread + 13

Thread 11:
0 libsystem_kernel.dylib 0x00007fff9aabbe6a __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x00007fff8dc9ef08 _pthread_wqthread + 330
2 libsystem_pthread.dylib 0x00007fff8dca1fb9 start_wqthread + 13

Thread 12:
0 libsystem_kernel.dylib 0x00007fff9aabbe6a __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x00007fff8dc9ef08 _pthread_wqthread + 330
2 libsystem_pthread.dylib 0x00007fff8dca1fb9 start_wqthread + 13

Thread 13:

Thread 14 Crashed:: DownloadThread
0 ??? 0x000000410441119a 0 + 279244247450
1 QtNetwork 0x0000000104407514 QAbstractSocket::waitForReadyRead(int) + 228
2 Nir.SoulseekQt 0x000000010355e575 DownloadThread::PerformDownload() + 725
3 Nir.SoulseekQt 0x000000010355e1a3 DownloadThread::run() + 19
4 QtCore 0x0000000103de9542 0x103db6000 + 210242
5 libsystem_pthread.dylib 0x00007fff8dc9d899 _pthread_body + 138
6 libsystem_pthread.dylib 0x00007fff8dc9d72a _pthread_start + 137
7 libsystem_pthread.dylib 0x00007fff8dca1fc9 thread_start + 13

Thread 14 crashed with X86 Thread State (64-bit):
rax: 0x00000000ffffffff rbx: 0x00006000003ab1a0 rcx: 0x0000000112e0e050 rdx: 0x0000000112e0bb20
rdi: 0x0000000000000567 rsi: 0x0000000112e0bba0 rbp: 0x0000000112e0bcd0 rsp: 0x0000000112e0bc50
r8: 0x0000000112e0ba60 r9: 0x0000000000000000 r10: 0x0000000112e0bb20 r11: 0x0000000000000072
r12: 0x0000000000000001 r13: 0x0000000112e0bcff r14: 0x000060000041c430 r15: 0x0000000000000000
rip: 0x000000410441119a rfl: 0x0000000000010206 cr2: 0x000000410441119a

Logical CPU: 2
Error Code: 0x00000014
Trap Number: 14