Getting long poll exceptions in m0mchil's miner

[iopq]

I was trying swepool and also bitparking for namecoins, they both give this kind of an exception:

..., long poll exception:
Traceback (most recent call last):
File "BitcoinMiner.pyo", line 259, in longPollThread
File "BitcoinMiner.pyo", line 234, in request
File "json\__init__.pyo", line 307, in loads
File "json\decoder.pyo", line 319, in decode
File "json\decoder.pyo", line 338, in raw_decode
ValueError: No JSON object could be decoded

obviously I don't get it in slush's pool because it doesn't support long polling
should I ignore this or is something going wrong?