diff --git a/src/main/java/nlib/cmm/crypto/AriaCrypto.java b/src/main/java/nlib/cmm/crypto/AriaCrypto.java
index 21cf4eef..ad15b8a2 100644
--- a/src/main/java/nlib/cmm/crypto/AriaCrypto.java
+++ b/src/main/java/nlib/cmm/crypto/AriaCrypto.java
@@ -122,9 +122,8 @@ public class AriaCrypto {
     	
     	try {
     		ret = AriaUtil.ariaDecrypt(value);
-    	} catch(Exception e) {
+    	} catch(UnsupportedEncodingException | InvalidKeyException e) {
     		log.error("ERROR at AriaCrypto.decode : " + e.toString());
-    		e.printStackTrace();
     		ret = null;
     	}
     	
diff --git a/src/main/java/nlib/cmm/crypto/AriaUtil.java b/src/main/java/nlib/cmm/crypto/AriaUtil.java
index 85948455..c4c79fbd 100644
--- a/src/main/java/nlib/cmm/crypto/AriaUtil.java
+++ b/src/main/java/nlib/cmm/crypto/AriaUtil.java
@@ -104,6 +104,11 @@ public class AriaUtil {
 		AriaEngine instance = new AriaEngine(256, privateKey);
 
 		c = AriaEngine.hexToByteArray(strHex);
+		
+		if(c == null)
+		{
+			return null;
+		}
 		p = new byte[c.length];
 		instance.decrypt(c, p, p.length);
 
@@ -181,6 +186,11 @@ public class AriaUtil {
 			AriaEngine instance = new AriaEngine(256, privateKey);
 			
 			c = hexToByteArray(strHex);
+			
+			if(c == null)
+			{
+				return null;
+			}
 			p = new byte[c.length];
 			instance.decrypt(c, p, p.length);
 			
@@ -188,7 +198,7 @@ public class AriaUtil {
 			buf.append(new String(p));
 			return buf.toString().trim();
 		} catch (Exception e) {
-			e.printStackTrace();
+			log.error("ERROR at AriaCrypto.hexToByteArray : " + e.toString());
 			return originalData;
 		}
 	}
@@ -282,6 +292,11 @@ public class AriaUtil {
 		AriaEngine instance = new AriaEngine(256, privateKey);
 
 		c = hexToByteArray(strHex);
+		
+		if(c == null)
+		{
+			return null;
+		}
 		p = new byte[c.length];
 		instance.decrypt(c, p, p.length);
 
@@ -307,6 +322,11 @@ public class AriaUtil {
 		AriaEngine instance = new AriaEngine(256, privateKey);
 
 		c = hexToByteArray(strHex);
+		
+		if(c == null)
+		{
+			return null;
+		}
 		p = new byte[c.length];
 		instance.decrypt(c, p, p.length);
 
diff --git a/src/main/java/nlib/restful/service/impl/DataApiRESTful.java b/src/main/java/nlib/restful/service/impl/DataApiRESTful.java
index cf10b61c..f858bda3 100644
--- a/src/main/java/nlib/restful/service/impl/DataApiRESTful.java
+++ b/src/main/java/nlib/restful/service/impl/DataApiRESTful.java
@@ -104,11 +104,11 @@ public class DataApiRESTful implements DataApiInterface {
 	        		statusCode = responseEntity.getStatusCode();
 	        		resultXML = responseEntity.getBody();
         		} catch(HttpClientErrorException e) {
-        			//e.printStackTrace();
+        			log.error("request > HttpClientErrorException 발생 : " + e.toString());
         			resultXML = e.getResponseBodyAsString();
         			statusCode = e.getStatusCode();
         		} catch(HttpServerErrorException e) {
-        			//e.printStackTrace();
+        			log.error("request > HttpServerErrorException 발생 : " + e.toString());
         			resultXML = e.getResponseBodyAsString();
         			statusCode = e.getStatusCode();
         		}
@@ -121,11 +121,11 @@ public class DataApiRESTful implements DataApiInterface {
         			statusCode = responseEntity.getStatusCode();
         			resultXML = responseEntity.getBody();
         		} catch(HttpClientErrorException e) {
-        			e.printStackTrace();
+        			log.error("request > HttpClientErrorException 발생 : " + e.toString());
         			resultXML = e.getResponseBodyAsString();
         			statusCode = e.getStatusCode();
         		} catch(HttpServerErrorException e) {
-        			e.printStackTrace();
+        			log.error("request > HttpServerErrorException 발생 : " + e.toString());
         			resultXML = e.getResponseBodyAsString();
         			statusCode = e.getStatusCode();
         		}
@@ -159,8 +159,13 @@ public class DataApiRESTful implements DataApiInterface {
     		log.debug("RES resVO : resultCode    = " + resVO.getResultCode());
     		log.debug("RES resVO : resultMessage = " + resVO.getResultMessage());
     		
+    	}catch(HttpClientErrorException e) {
+			log.error("request > HttpClientErrorException 발생 : " + e.toString());
+			return DataApiInterface.makeErrorRes("E_REQ_HTTPCLIENTERROREXCEPTION", e.toString());
+    	}catch(HttpServerErrorException e) {
+    		log.error("request > HttpServerErrorException 발생 : " + e.toString());
+    		return DataApiInterface.makeErrorRes("E_REQ_HTTPSERVERERROREXCEPTION", e.toString());
     	} catch(Exception e) {
-    		e.printStackTrace();
     		log.error("request > Exception 발생 : " + e.toString());
     		return DataApiInterface.makeErrorRes("E_REQ_EXCEPTION", e.toString());
     	}
diff --git a/src/main/java/nlib/util/EmailUtil.java b/src/main/java/nlib/util/EmailUtil.java
index b872da6f..1c5b5833 100644
--- a/src/main/java/nlib/util/EmailUtil.java
+++ b/src/main/java/nlib/util/EmailUtil.java
@@ -103,7 +103,7 @@ public class EmailUtil{
 	public static String getPrintStackTrace(Exception e) {
         
         StringWriter errors = new StringWriter();
-        e.printStackTrace(new PrintWriter(errors));
+        log.error("ERROR at EmailUtil.getPrintStackTrace : " + e.toString());
          
         return errors.toString();
          
diff --git a/src/main/webapp/WEB-INF/jsp/nlib/inform/selectNCultureLocationInfo.jsp b/src/main/webapp/WEB-INF/jsp/nlib/inform/selectNCultureLocationInfo.jsp
index 083d8fac..f5c92394 100644
--- a/src/main/webapp/WEB-INF/jsp/nlib/inform/selectNCultureLocationInfo.jsp
+++ b/src/main/webapp/WEB-INF/jsp/nlib/inform/selectNCultureLocationInfo.jsp
@@ -39,6 +39,9 @@ $( document ).ready(function() {
 //-->
 </script>
     <!-- 찾아오시는길 섹션 -->
+    <div class="skip-nav" style="display:none;">
+      <a href="#addr">지도 건너뛰기</a>
+    </div>
     <div class="location map">
         <h2 class="blind">${pageTitle} 섹션영역</h2>
         <div class="inner">
@@ -114,7 +117,7 @@ $( document ).ready(function() {
 				            </script>                        
                             <!-- 지도 : 종료 -->
                         </div>
-                        <div class="addr">
+                        <div id="addr" class="addr">
                             <p><img src="/images/icon/icon-location-01.png" alt=""></p>
                             <p>주소</p>
                             <p>(${zipCode }) ${address } ${addressDetail }</p>