diff --git a/core/class/declarationtva.class.php b/core/class/declarationtva.class.php
index c545e03..22d3644 100644
--- a/core/class/declarationtva.class.php
+++ b/core/class/declarationtva.class.php
@@ -1252,12 +1252,12 @@ class DeclarationTVA
                 $debit->entity = $this->entity;
                 
                 $result = $debit->create($user);
-                error_log("DEBUG: Debit entry create result: " . ($result ? "SUCCESS" : "FAILED"));
+                error_log("DEBUG: Debit entry create result: " . $result . " (type: " . gettype($result) . ")");
                 
                 if ($result > 0) {
                     error_log("DEBUG: Debit entry created successfully with ID: " . $result);
                 } else {
-                    error_log("DEBUG: Debit entry creation failed: " . $debit->error);
+                    error_log("DEBUG: Debit entry creation failed - result: " . $result . ", error: " . $debit->error);
                     $this->error = 'Failed to create debit entry: ' . $debit->error;
                     return false;
                 }
@@ -1283,12 +1283,12 @@ class DeclarationTVA
                 $credit->entity = $this->entity;
                 
                 $result = $credit->create($user);
-                error_log("DEBUG: Credit entry create result: " . ($result ? "SUCCESS" : "FAILED"));
+                error_log("DEBUG: Credit entry create result: " . $result . " (type: " . gettype($result) . ")");
                 
                 if ($result > 0) {
                     error_log("DEBUG: Credit entry created successfully with ID: " . $result);
                 } else {
-                    error_log("DEBUG: Credit entry creation failed: " . $credit->error);
+                    error_log("DEBUG: Credit entry creation failed - result: " . $result . ", error: " . $credit->error);
                     $this->error = 'Failed to create credit entry: ' . $credit->error;
                     return false;
                 }