*+[NSString stringWithCString:encoding:]: NULL cString
(null)
((

0 CoreFoundation 0x0000000187a491d0  + 148 1 libobjc.A.dylib 0x000000018648055c objc_exception_throw + 56 2 CoreFoundation 0x0000000187a49100  + 0 3 Foundation 0x000000018847cd80  + 100 4 AppName 0x10090d3d0 AppName + 9491408 query_callback (in AppName) + 192 5 libsqlite3.dylib 0x0000000187f3d628 sqlite3_exec + 800 6 AppName 0x10090a438 AppName + 9479224 execute_query (in AppName) + 164 7 AppName 0x10090bdb0 AppName + 9485744 -[WXOMTAStore loadCachedEvents:] (in AppName) + 184 8 AppName 0x10090cccc AppName + 9489612 __32-[WXOMTAStore sendCachedEvents:]_block_invoke (in AppName) + 440 9 libdispatch.dylib 0x00000001868d21fc  + 24 10 libdispatch.dylib 0x00000001868d21bc  + 16 11 libdispatch.dylib 0x00000001868e03dc  + 928 12 libdispatch.dylib 0x00000001868d59a4  + 652 13 libdispatch.dylib 0x00000001868e234c  + 572 14 libdispatch.dylib 0x00000001868e20ac  + 124 15 libsystem_pthread.dylib 0x0000000186adb2a0 _pthread_wqthread + 1288 16 libsystem_pthread.dylib 0x0000000186adad8c start_wqthread + 4

)

Barisan 7 dan 8 ialah mesej ralat utama