diff --git a/core/rpc/core/src/impl/utils.rs b/core/rpc/core/src/impl/utils.rs
index 6fa2123a3..7aabe822e 100644
--- a/core/rpc/core/src/impl/utils.rs
+++ b/core/rpc/core/src/impl/utils.rs
@@ -2646,7 +2646,7 @@ impl<C: CkbRpc> MercuryRpcImpl<C> {
                 ))
                 .pack();
                 transfer_components.type_witness_args.insert(
-                    transfer_components.inputs.len() - 1,
+                    transfer_components.inputs.len(),
                     (witness_args_input_type, packed::BytesOpt::default()),
                 );
 
diff --git a/core/service/src/lib.rs b/core/service/src/lib.rs
index 4bac08345..1bdccbcb8 100644
--- a/core/service/src/lib.rs
+++ b/core/service/src/lib.rs
@@ -214,9 +214,7 @@ impl Service {
                 match self.get_block_by_number(tip_number + 1).await {
                     Ok(Some(block)) => {
                         if block.parent_hash().raw_data() == tip_hash.0.to_vec() {
-                            log::info!("start change current epoch");
                             self.change_current_epoch(block.epoch().to_rational());
-                            log::info!("finish change current epoch");
                             log::info!("start append {}, {}", block.number(), block.hash());
                             self.store
                                 .append_block(Context::new(), block)