diff --git a/Cargo.toml b/Cargo.toml
index affa5ad..0871b04 100755
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sol-trade-sdk"
-version = "1.2.2"
+version = "1.2.3"
 edition = "2021"
 authors = [
     "William <byteblock6@gmail.com>",
diff --git a/README.md b/README.md
index afe9f99..da99f50 100644
--- a/README.md
+++ b/README.md
@@ -87,14 +87,14 @@ Add the dependency to your `Cargo.toml`:
 
 ```toml
 # Add to your Cargo.toml
-sol-trade-sdk = { path = "./sol-trade-sdk", version = "1.2.2" }
+sol-trade-sdk = { path = "./sol-trade-sdk", version = "1.2.3" }
 ```
 
 ### Use crates.io
 
 ```toml
 # Add to your Cargo.toml
-sol-trade-sdk = "1.2.2"
+sol-trade-sdk = "1.2.3"
 ```
 
 ## 🛠️ Usage Examples
diff --git a/README_CN.md b/README_CN.md
index 6012855..dbe48ce 100755
--- a/README_CN.md
+++ b/README_CN.md
@@ -87,14 +87,14 @@ git clone https://github.com/0xfnzero/sol-trade-sdk
 
 ```toml
 # 添加到您的 Cargo.toml
-sol-trade-sdk = { path = "./sol-trade-sdk", version = "1.2.2" }
+sol-trade-sdk = { path = "./sol-trade-sdk", version = "1.2.3" }
 ```
 
 ### 使用 crates.io
 
 ```toml
 # 添加到您的 Cargo.toml
-sol-trade-sdk = "1.2.2"
+sol-trade-sdk = "1.2.3"
 ```
 
 ## 🛠️ 使用示例
diff --git a/src/trading/core/parallel.rs b/src/trading/core/parallel.rs
index 681de26..071da5e 100755
--- a/src/trading/core/parallel.rs
+++ b/src/trading/core/parallel.rs
@@ -88,7 +88,7 @@ async fn parallel_execute(
         return Err(anyhow!("No Rpc Default Swqos configured."));
     }
     let cores = core_affinity::get_core_ids().unwrap();
-    let mut handles: Vec<JoinHandle<Result<(bool, Signature, anyhow::Error)>>> =
+    let mut handles: Vec<JoinHandle<Result<(bool, Signature, Option<anyhow::Error>)>>> =
         Vec::with_capacity(swqos_clients.len());
 
     let instructions = Arc::new(instructions);
@@ -194,7 +194,7 @@ async fn parallel_execute(
             );
 
             if let Some(signature) = transaction.signatures.first() {
-                return Ok((success, signature.clone(), err.unwrap()));
+                return Ok((success, signature.clone(), err));
             } else {
                 return Err(anyhow!("Transaction has no signatures"));
             }
@@ -237,7 +237,9 @@ async fn parallel_execute(
                 if success {
                     return Ok((success, sig));
                 }
-                errors.push(format!("Task error: {}", err));
+                if let Some(err) = err {
+                    errors.push(format!("Task error: {}", err));
+                }
                 last_signature = Some(sig);
             }
             Ok(Err(e)) => errors.push(format!("Task error: {}", e)),