The fee pool is empty again.

I can't change there.. i have not the choice to change there anything

I have no BTS on my Account, how can i change fee currency to Open.BTC?

Do you have some BTS in your account so that you can pay transaction fee? If not, you can change fee currency to Open.BTC

Hi,
every time i try to convert my OPEN.BTC to BTS i get this error:

bitshares-crypto digest 3b03db1ba5e9517526c019bc77e0ec5be979e0c9eaa779e467c121c28b8949a9 transaction 4998ab3c68b0dda371590100185b00000000000000e3e316b7fe01341b060000000000dd060102b52082ebd66d8a71cae46c830d824cdc324b3c63bcb9438720ec844883f8c90603c908176eb3f45685a51c84db5bfc5d813f8b89230629a28e471cebc8b233c60a0d27cde7635d010030b3416294cfdb5b81e8ca598c83e8d09a3e8c8adc34b4009fd7050b3dc020f9334e36eac22ee9100b917185a006a96bb80000 {"ref_block_num":38985,"ref_block_prefix":2959621291,"expiration":"2017-07-21T06:49:01","operations":[[0,{"fee":{"amount":"23320","asset_id":"1.3.0"},"from":"1.2.373219","to":"1.2.32567","amount":{"amount":"400180","asset_id":"1.3.861"},"memo":{"from":"BTS6GFzwEkYUbg68BijsRiYcwzzBTSaRUeaZEtB9VNVbWEfKKjdGo","to":"BTS8MmcVDiutGynSpi5vSr8tWbrTDWYWpAkTXUD24sJu45DBFLSRK","nonce":"384158648837901","message":"b3416294cfdb5b81e8ca598c83e8d09a3e8c8adc34b4009fd7050b3dc020f9334e36eac22ee9100b917185a006a96bb8"},"extensions":[]}]],"extensions":[],"signatures":["202162a3b03ebffa55c642c23c0a5f8fb0118c1f8ead569c112a1e036dc79eba3155f872df1cccd6e46bde2467560de709f3c8d337859399b44083d900e9f6f4d9"]}