diff --git a/sge-backend/src/main/java/com/sgs/graphql/dataCenter/dto/DataCenterDto.java b/sge-backend/src/main/java/com/sgs/graphql/dataCenter/dto/DataCenterDto.java
index 1973dbf..b647c16 100644
--- a/sge-backend/src/main/java/com/sgs/graphql/dataCenter/dto/DataCenterDto.java
+++ b/sge-backend/src/main/java/com/sgs/graphql/dataCenter/dto/DataCenterDto.java
@@ -18,7 +18,7 @@ public class DataCenterDto {
     private Integer number;
     private AreaDto area;
     
-    @JsonProperty("physical_machine")
+    @JsonProperty("physical_machines")
     private Map<String, PhysicalMachineDto> physicalMachine;
     
     // Emission calculation fields
diff --git a/sge-backend/src/main/java/com/sgs/utils/rabbitMQ/MessageListener.java b/sge-backend/src/main/java/com/sgs/utils/rabbitMQ/MessageListener.java
index 12302f3..ce1257a 100644
--- a/sge-backend/src/main/java/com/sgs/utils/rabbitMQ/MessageListener.java
+++ b/sge-backend/src/main/java/com/sgs/utils/rabbitMQ/MessageListener.java
@@ -806,8 +806,16 @@ public class MessageListener {
         System.out.println("🔍 Setting VM ID: " + vm.getId());
         
         // Use the source-specific power consumption (percentage of total VM power)
-        input.setConsuptionAmount(String.valueOf(sourceSpecificPower));
-        System.out.println("🔍 Setting Consumption Amount: " + sourceSpecificPower + "W");
+        // Format to 6 decimal places to avoid very long strings
+        String formattedPower = String.format("%.6f", sourceSpecificPower);
+        input.setConsuptionAmount(formattedPower);
+        System.out.println("🔍 Setting Consumption Amount: " + formattedPower + "W");
+        
+        // Validate field lengths to prevent database errors
+        System.out.println("🔍 Field length validation:");
+        System.out.println("   Year: " + (input.getYear() != null ? input.getYear().length() : "null"));
+        System.out.println("   Month: " + (input.getMonth() != null ? input.getMonth().length() : "null"));
+        System.out.println("   ConsuptionAmount: " + (input.getConsuptionAmount() != null ? input.getConsuptionAmount().length() : "null"));
         
         System.out.println("🔍 VM Emission Input for Source:");
         System.out.println("   VM ID: " + vm.getId());