When I trade in BitShares these days, it always says:

Failed to broadcast the transaction:
bitshares-crypto digest f0423b230fb92c175a8de0b5055ba8ce1724b93b4fb75ecf4dc1364601875c26 transaction e338fa7a1ae9ecb5a0590101750000000000000071feee0158419a0b000000007187f3ea010000000079d4080863000000 {"ref_block_num":14563,"ref_block_prefix":3910826746,"expiration":"2017-08-25T23:42:36","operations":[[1,{"fee":{"amount":"117","asset_id":"1.3.113"},"seller":"1.2.30590","amount_to_sell":{"amount":"194658648","asset_id":"1.3.113"},"min_to_receive":{"amount":"32174983","asset_id":"1.3.121"},"expiration":"2022-08-25T23:42:12","fill_or_kill":false,"extensions":[]}]],"extensions":[],"signatures":["20236ef3579c96459f26c52b8ff2702d9ee2c00eca7a058b58f82d161b1a6961b911eb2e271b1f6013862b65034aca79293bb509773c897b2a68b2e87961e1de27"]}

Is there anything wrong with BitShares? Does anybody know what is happenning?
Thanks!