error found when send grin coin

environment: Mainet v1.0.0/ubuntu

when I send some coin to 1 wallet node, some error found as below:

ERROR grin_wallet::libwallet::api - api:post_tx: failed with error:Client Callback Error:POsting transactoin to node

And in wallet node side, the transaction is always waiting for confirm after 30 minutes, please tell me what happen, thanks.