Crashed Thread: 0 Dispatch queue: com.apple.main-thread

Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000018

VM Regions Near 0x18: --> __TEXT 0000000100000000-0000000100005000 [ 20K] r-x/rwx SM=COW /Library/ScriptingAdditions/SIMBL.osax/Contents/Resources/SIMBL Agent.app/Contents/MacOS/SIMBL Agent

Application Specific Information: objc_msgSend() selector name: respondsToSelector: objc[870]: garbage collection is ON

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 libobjc.A.dylib 0x00007fff8b71d52f objc_msgSend_vtable5 + 47 1 com.apple.Foundation 0x00007fff90a6019a _NSDescriptionWithLocaleFunc + 50 2 com.apple.CoreFoundation 0x00007fff8f931a00 __CFStringAppendFormatCore + 13952 3 com.apple.CoreFoundation 0x00007fff8f97b4fb _CFStringCreateWithFormatAndArgumentsAux + 107 4 com.apple.Foundation 0x00007fff90a6013c +[NSString stringWithFormat:] + 170 5 net.culater.SIMBL_Agent 0x00000001000018f8 -[SIMBLAgent injectSIMBL:] + 874

More info in the attached file.

I've 8 other similar crashes if needed.

This happens to me all the time, too. Especially at boot.