diff --git a/src/main/java/page/clab/api/global/common/slack/application/SlackService.java b/src/main/java/page/clab/api/global/common/slack/application/SlackService.java
index 0ad64dcbd..0dfdff842 100644
--- a/src/main/java/page/clab/api/global/common/slack/application/SlackService.java
+++ b/src/main/java/page/clab/api/global/common/slack/application/SlackService.java
@@ -38,6 +38,7 @@
 import java.util.Collections;
 import java.util.List;
 import java.util.concurrent.CompletableFuture;
+import java.util.stream.Collectors;
 
 @Service
 @Slf4j
@@ -124,14 +125,17 @@ private List<LayoutBlock> createErrorBlocks(HttpServletRequest request, Exceptio
         Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
         String username = (authentication == null || authentication.getName() == null) ? "anonymous" : authentication.getName();
 
+        String errorMessage = e.getMessage() == null ? "No error message provided" : e.getMessage();
+        String detailedMessage = extractMessageAfterException(errorMessage);
+        log.error("Server Error: {}", detailedMessage);
         return Arrays.asList(
                 section(section -> section.text(markdownText(":firecracker: *Server Error*"))),
                 section(section -> section.fields(Arrays.asList(
                         markdownText("*User:*\n" + username),
                         markdownText("*Endpoint:*\n[" + httpMethod + "] " + requestUrl)
                 ))),
-                section(section -> section.text(markdownText("*Error Message:*\n" + e.getMessage().split(":")[1]))),
-                section(section -> section.text(markdownText("*Stack Trace:*\n```" + Arrays.toString(e.getStackTrace()) + "```")))
+                section(section -> section.text(markdownText("*Error Message:*\n" + detailedMessage))),
+                section(section -> section.text(markdownText("*Stack Trace:*\n```" + getStackTraceSummary(e) + "```")))
         );
     }
 
@@ -226,6 +230,19 @@ private List<LayoutBlock> createServerStartBlocks() {
         );
     }
 
+    private String extractMessageAfterException(String message) {
+        String exceptionIndicator = "Exception:";
+        int exceptionIndex = message.indexOf(exceptionIndicator);
+        return exceptionIndex == -1 ? message : message.substring(exceptionIndex + exceptionIndicator.length()).trim();
+    }
+
+    private String getStackTraceSummary(Exception e) {
+        return Arrays.stream(e.getStackTrace())
+                .limit(10)
+                .map(StackTraceElement::toString)
+                .collect(Collectors.joining("\n"));
+    }
+
     private String formatMemoryUsage(MemoryUsage memoryUsage) {
         long usedMemory = memoryUsage.getUsed() / (1024 * 1024);
         long maxMemory = memoryUsage.getMax() / (1024 * 1024);
diff --git a/src/main/java/page/clab/api/global/handler/GlobalExceptionHandler.java b/src/main/java/page/clab/api/global/handler/GlobalExceptionHandler.java
index 05df9d8bc..6c52d31b5 100644
--- a/src/main/java/page/clab/api/global/handler/GlobalExceptionHandler.java
+++ b/src/main/java/page/clab/api/global/handler/GlobalExceptionHandler.java
@@ -8,6 +8,7 @@
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.dao.DataIntegrityViolationException;
+import org.springframework.dao.IncorrectResultSizeDataAccessException;
 import org.springframework.http.converter.HttpMessageNotReadableException;
 import org.springframework.security.access.AccessDeniedException;
 import org.springframework.security.authentication.BadCredentialsException;
@@ -67,6 +68,7 @@
 import java.util.ArrayList;
 import java.util.List;
 import java.util.NoSuchElementException;
+import java.util.concurrent.CompletionException;
 
 @RestControllerAdvice(basePackages = "page.clab.api")
 @RequiredArgsConstructor
@@ -169,11 +171,14 @@ public ErrorResponse conflictException(HttpServletResponse response, Exception e
             IllegalStateException.class,
             FileUploadFailException.class,
             DataIntegrityViolationException.class,
+            IncorrectResultSizeDataAccessException.class,
+            ArrayIndexOutOfBoundsException.class,
             IOException.class,
             WebClientRequestException.class,
             TransactionSystemException.class,
             SecurityException.class,
             CustomOptimisticLockingFailureException.class,
+            CompletionException.class,
             EncryptionException.class,
             DecryptionException.class,
             Exception.class