diff --git a/src/main/java/me/hatter/tools/tinyencrypt/config/TinyEncryptConstant.java b/src/main/java/me/hatter/tools/tinyencrypt/config/TinyEncryptConstant.java
index aec7967..3b6c561 100644
--- a/src/main/java/me/hatter/tools/tinyencrypt/config/TinyEncryptConstant.java
+++ b/src/main/java/me/hatter/tools/tinyencrypt/config/TinyEncryptConstant.java
@@ -1,7 +1,7 @@
 package me.hatter.tools.tinyencrypt.config;
 
 public class TinyEncryptConstant {
-    public static final String VERSION = "0.5.1";
+    public static final String VERSION = "0.5.2";
 
     public static final String ENC_FILE_EXT = ".tinyenc";
 }
diff --git a/src/main/java/me/hatter/tools/tinyencrypt/encrypt/TinyEncryptMetaUtil.java b/src/main/java/me/hatter/tools/tinyencrypt/encrypt/TinyEncryptMetaUtil.java
index 352c42c..b271df6 100644
--- a/src/main/java/me/hatter/tools/tinyencrypt/encrypt/TinyEncryptMetaUtil.java
+++ b/src/main/java/me/hatter/tools/tinyencrypt/encrypt/TinyEncryptMetaUtil.java
@@ -50,7 +50,7 @@ public class TinyEncryptMetaUtil {
         }
         Optional<byte[]> keyOpt = CardCliUtil.getChall(config.getCardCli(), config.getLocalPrivateKeyPemChallenge());
         if (!keyOpt.isPresent()) {
-            throw new JumpOutException();
+            throw new JumpOutException("Get challenge failed!");
         }
         byte[] key = keyOpt.get();
         String localPrivateKeyPem = AESCryptTool.gcmDecrypt(key)
diff --git a/src/main/java/me/hatter/tools/tinyencrypt/util/CardCliUtil.java b/src/main/java/me/hatter/tools/tinyencrypt/util/CardCliUtil.java
index fad70f5..e31515b 100644
--- a/src/main/java/me/hatter/tools/tinyencrypt/util/CardCliUtil.java
+++ b/src/main/java/me/hatter/tools/tinyencrypt/util/CardCliUtil.java
@@ -37,7 +37,8 @@ public class CardCliUtil {
         log.info("Start: " + cardCli);
 
         Optional<String> outputsOpt = runProcess(pb);
-        if (!outputsOpt.isPresent()) {
+
+        if ((!outputsOpt.isPresent()) || outputsOpt.get().trim().isEmpty()) {
             return Optional.empty();
         }
         JSONObject jo = JSON.parseObject(outputsOpt.get());
@@ -65,13 +66,23 @@ public class CardCliUtil {
         try {
             log.debug("Start process: " + pb.command());
             p = pb.start();
-            p.waitFor();
-            log.info("Finished command");
+            int ret = p.waitFor();
+            if (ret == 0) {
+                log.info("Finished command, ret code: " + ret);
+            } else {
+                log.warn("Finished command, ret code: " + ret);
+            }
+
+            if (log.isDebugEnable()) {
+                byte[] errorBytes = IOUtil.readToBytes(p.getErrorStream());
+                String errorOutputs = new String(errorBytes, StandardCharsets.UTF_8);
+                log.debug("Read cmd error outputs: [[[~" + errorOutputs + "~]]]");
+            }
 
             byte[] jsonBytes = IOUtil.readToBytes(p.getInputStream());
             String outputs = new String(jsonBytes, StandardCharsets.UTF_8);
             if (log.isDebugEnable()) {
-                log.debug("Read cmd outputs: " + outputs);
+                log.debug("Read cmd outputs: [[[~" + outputs + "~]]]");
             }
             return Optional.of(outputs);
         } catch (Exception e) {