Very often get next exception:

Code:
[iSLRequestResult checkAndRaiseExceptionForClient:session:description:]
in LSThreadPoolThread


with stack


Code:
0                                   0x063a3b74 0x0 + 104479604,
1                                   0x001fb39d main + 0,
2                                   0x004416e5 -[iSLSession addTable:adapter:group:schema:selector:mode:requestedBufferSize:requestedMaxFrequency:snapshot:] + 168,
3                                   0x00448fb3 -[LSClient subscribeTable:] + 1838,
4                                   0x0044b131 -[LSClient resubscribeAll] + 584,
5                                   0x0044addb -[LSClient backgroundResubscribeAll] + 9
Is it normal? What should I do?
Sure, I've wrapped in try/catch case, but it's very irritating when debugger stops every time