why so many fork???

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WHAT'S WRONG WITH YOU?
xeldal, fox, in.abit

86993ms th_a       witness.cpp:194               block_production_loo ] Not producing block because it isn't my turn
3387429ms th_a       application.cpp:523           handle_block         ] Got block: #15659043 time: 2017-04-14T00:56:27 latency: 436 ms from: xeldal  irreversible: 15659025 (-18)
3388105ms th_a       application.cpp:523           handle_block         ] Got block: #15659043 time: 2017-04-14T00:56:27 latency: 1112 ms from: xeldal  irreversible: 15659029 (-14)

3350376ms th_a       application.cpp:523           handle_block         ] Got block: #15659030 time: 2017-04-14T00:55:48 latency: 2356 ms from: fox  irreversible: 15659015 (-15)
3350472ms th_a       application.cpp:523           handle_block         ] Got block: #15659030 time: 2017-04-14T00:55:48 latency: 2479 ms from: fox  irreversible: 15659015 (-15)
3

3246353ms th_a       application.cpp:523           handle_block         ] Got block: #15658996 time: 2017-04-14T00:54:06 latency: 360 ms from: in.abit  irreversible: 15658978 (-18)
3246893ms th_a       application.cpp:523           handle_block         ] Got block: #15658996 time: 2017-04-14T00:54:06 latency: 900 ms from: in.abit  irreversible: 15658978 (-18)