fix: 邮件预览日志

backend/src/main/java/io/dataease/plugins/server/XEmailTaskServer.java

@@ -87,7 +87,7 @@ public class XEmailTaskServer {
         try {
             fileId = emailXpackService.print(url, token, buildPixel(request.getPixel()));
         } catch (Exception e) {
-            LogUtil.error(e);
+            LogUtil.error(e.getMessage(), e);
             DEException.throwException("预览失败，请联系管理员");
         }
         String imageUrl = "/system/ui/image/" + fileId;