diff --git a/admin-dev/tabs/AdminCMS.php b/admin-dev/tabs/AdminCMS.php
index d92782f1a..2c87173fa 100644
--- a/admin-dev/tabs/AdminCMS.php
+++ b/admin-dev/tabs/AdminCMS.php
@@ -235,7 +235,7 @@ class AdminCMS extends AdminTab
 			$cms = new CMS((int)(Tools::getValue('id_cms')));
 			$cms->cleanPositions($cms->id_cms_category);
 			if (!$cms->delete())
-				$this->_errors[] = Tools::displayError('An error occurred while deleting object.').' <b>'.$this->table.' ('.mysql_error().')</b>';
+				$this->_errors[] = Tools::displayError('An error occurred while deleting object.').' <b>'.$this->table.' ('.Db::getInstance()->getMsgError().')</b>';
 			else
 				Tools::redirectAdmin(self::$currentIndex.'&id_cms_category='.$cms->id_cms_category.'&conf=1&token='.Tools::getAdminTokenLite('AdminCMSContent'));
 		}/* Delete multiple objects */
@@ -273,7 +273,7 @@ class AdminCMS extends AdminTab
 					$cms = new CMS();
 					$this->copyFromPost($cms, 'cms');
 					if (!$cms->add())
-						$this->_errors[] = Tools::displayError('An error occurred while creating object.').' <b>'.$this->table.' ('.mysql_error().')</b>';
+						$this->_errors[] = Tools::displayError('An error occurred while creating object.').' <b>'.$this->table.' ('.Db::getInstance()->getMsgError().')</b>';
 					elseif (Tools::isSubmit('submitAddcmsAndPreview'))
 					{
 						$preview_url = $context->link->getCMSLink($cms, $this->getFieldValue($object, 'link_rewrite', $this->_defaultFormLanguage), $context->language->id);
@@ -295,7 +295,7 @@ class AdminCMS extends AdminTab
 					$cms = new CMS($id_cms);
 					$this->copyFromPost($cms, 'cms');
 					if (!$cms->update())
-						$this->_errors[] = Tools::displayError('An error occurred while updating object.').' <b>'.$this->table.' ('.mysql_error().')</b>';
+						$this->_errors[] = Tools::displayError('An error occurred while updating object.').' <b>'.$this->table.' ('.Db::getInstance()->getMsgError().')</b>';
 					elseif (Tools::isSubmit('submitAddcmsAndPreview'))
 					{
 						$preview_url = $context->link->getCMSLink($cms, $this->getFieldValue($object, 'link_rewrite', $this->_defaultFormLanguage), $context->language->id);
diff --git a/admin-dev/tabs/AdminCustomers.php b/admin-dev/tabs/AdminCustomers.php
index 411bc492a..0540f1d78 100644
--- a/admin-dev/tabs/AdminCustomers.php
+++ b/admin-dev/tabs/AdminCustomers.php
@@ -153,7 +153,7 @@ class AdminCustomers extends AdminTab
 						$shop = new Shop((int)$object->id_shop);
 						$object->id_group_shop = (int)$shop->id_group_shop;
 						if (!$object->add())
-							$this->_errors[] = Tools::displayError('An error occurred while creating object.').' <b>'.$this->table.' ('.mysql_error().')</b>';
+							$this->_errors[] = Tools::displayError('An error occurred while creating object.').' <b>'.$this->table.' ('.Db::getInstance()->getMsgError().')</b>';
 						elseif (($_POST[$this->identifier] = $object->id /* voluntary */) AND $this->postImage($object->id) AND !sizeof($this->_errors) AND $this->_redirect)
 						{
 							// Add Associated groups
diff --git a/admin-dev/tabs/AdminImport.php b/admin-dev/tabs/AdminImport.php
index 81491083b..480172fef 100644
--- a/admin-dev/tabs/AdminImport.php
+++ b/admin-dev/tabs/AdminImport.php
@@ -523,7 +523,7 @@ class AdminImport extends AdminTab
 					else
 					{
 						$this->_errors[] = $categoryToCreate->name[$defaultLanguageId].(isset($categoryToCreate->id) ? ' ('.$categoryToCreate->id.')' : '').' '.Tools::displayError('Cannot be saved');
-						$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').mysql_error();
+						$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').Db::getInstance()->getMsgError();
 					}
 				}
 			}
@@ -577,7 +577,7 @@ class AdminImport extends AdminTab
 			if (!$res)
 			{
 				$this->_errors[] = $info['name'].(isset($info['id']) ? ' (ID '.$info['id'].')' : '').' '.Tools::displayError('Cannot be saved');
-				$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').mysql_error();
+				$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').Db::getInstance()->getMsgError();
 			}
 		}
 
@@ -634,7 +634,7 @@ class AdminImport extends AdminTab
 					else
 					{
 						$this->_errors[] = $manufacturer->name.(isset($manufacturer->id) ? ' ('.$manufacturer->id.')' : '').' '.Tools::displayError('Cannot be saved');
-						$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').mysql_error();
+						$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').Db::getInstance()->getMsgError();
 					}
 				}
 			}
@@ -654,7 +654,7 @@ class AdminImport extends AdminTab
 					else
 					{
 						$this->_errors[] = $supplier->name.(isset($supplier->id) ? ' ('.$supplier->id.')' : '').' '.Tools::displayError('Cannot be saved');
-						$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').mysql_error();
+						$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').Db::getInstance()->getMsgError();
 					}
 				}
 			}
@@ -693,7 +693,7 @@ class AdminImport extends AdminTab
 							else
 							{
 								$this->_errors[] = $categoryToCreate->name[$defaultLanguageId].(isset($categoryToCreate->id) ? ' ('.$categoryToCreate->id.')' : '').' '.Tools::displayError('Cannot be saved');
-								$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').mysql_error();
+								$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').Db::getInstance()->getMsgError();
 							}
 						}
 					}
@@ -715,7 +715,7 @@ class AdminImport extends AdminTab
 							else
 							{
 								$this->_errors[] = $categoryToCreate->name[$defaultLanguageId].(isset($categoryToCreate->id) ? ' ('.$categoryToCreate->id.')' : '').' '.Tools::displayError('Cannot be saved');
-								$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').mysql_error();
+								$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').Db::getInstance()->getMsgError();
 							}
 						}
 					}
@@ -762,7 +762,7 @@ class AdminImport extends AdminTab
 			if (!$res)
 			{
 				$this->_errors[] = $info['name'].(isset($info['id']) ? ' (ID '.$info['id'].')' : '').' '.Tools::displayError('Cannot be saved');
-				$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').mysql_error();
+				$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').Db::getInstance()->getMsgError();
 
 			}
 			else
@@ -866,7 +866,7 @@ class AdminImport extends AdminTab
 							else
 							{
 								$this->_warnings[] = $image->legend[$defaultLanguageId].(isset($image->id_product) ? ' ('.$image->id_product.')' : '').' '.Tools::displayError('Cannot be saved');
-								$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').mysql_error();
+								$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').Db::getInstance()->getMsgError();
 							}
 						}
 				}
@@ -989,7 +989,7 @@ class AdminImport extends AdminTab
 			if (!$res)
 			{
 				$this->_errors[] = $info['email'].(isset($info['id']) ? ' (ID '.$info['id'].')' : '').' '.Tools::displayError('Cannot be saved');
-				$this->_errors[] = ($fieldError !== true ? $fieldError : ($langFieldError !== true ? $langFieldError : '')).mysql_error();
+				$this->_errors[] = ($fieldError !== true ? $fieldError : ($langFieldError !== true ? $langFieldError : '')).Db::getInstance()->getMsgError();
 			}
 		}
 		$this->closeCsvFile($handle);
@@ -1034,7 +1034,7 @@ class AdminImport extends AdminTab
 					else
 					{
 						$this->_errors[] = $country->name[$defaultLanguageId].' '.Tools::displayError('Cannot be saved');
-						$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').mysql_error();
+						$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').Db::getInstance()->getMsgError();
 					}
 				}
 			}
@@ -1062,7 +1062,7 @@ class AdminImport extends AdminTab
 					else
 					{
 						$this->_errors[] = $state->name.' '.Tools::displayError('Cannot be saved');
-						$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').mysql_error();
+						$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').Db::getInstance()->getMsgError();
 					}
 				}
 			}
@@ -1075,7 +1075,7 @@ class AdminImport extends AdminTab
 					if ($customer)
 						$address->id_customer = (int)($customer);
 					else
-						$this->_errors[] = mysql_error().' '.$address->customer_email.' '.Tools::displayError('does not exist in database').' '.(isset($info['id']) ? ' (ID '.$info['id'].')' : '').' '.Tools::displayError('Cannot be saved');
+						$this->_errors[] = Db::getInstance()->getMsgError().' '.$address->customer_email.' '.Tools::displayError('does not exist in database').' '.(isset($info['id']) ? ' (ID '.$info['id'].')' : '').' '.Tools::displayError('Cannot be saved');
 				}
 				else
 					$this->_errors[] = '"'.$address->customer_email.'" :' .Tools::displayError('Is not a valid Email');
@@ -1091,8 +1091,8 @@ class AdminImport extends AdminTab
 					$address->id_manufacturer = (int)($manufacturer->id);
 				else
 				{
-					$this->_errors[] = mysql_error().' '.$manufacturer->name.(isset($manufacturer->id) ? ' ('.$manufacturer->id.')' : '').' '.Tools::displayError('Cannot be saved');
-					$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').mysql_error();
+					$this->_errors[] = Db::getInstance()->getMsgError().' '.$manufacturer->name.(isset($manufacturer->id) ? ' ('.$manufacturer->id.')' : '').' '.Tools::displayError('Cannot be saved');
+					$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').Db::getInstance()->getMsgError();
 				}
 			}
 
@@ -1106,8 +1106,8 @@ class AdminImport extends AdminTab
 					$address->id_supplier = (int)($supplier->id);
 				else
 				{
-					$this->_errors[] = mysql_error().' '.$supplier->name.(isset($supplier->id) ? ' ('.$supplier->id.')' : '').' '.Tools::displayError('Cannot be saved');
-					$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').mysql_error();
+					$this->_errors[] = Db::getInstance()->getMsgError().' '.$supplier->name.(isset($supplier->id) ? ' ('.$supplier->id.')' : '').' '.Tools::displayError('Cannot be saved');
+					$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').Db::getInstance()->getMsgError();
 				}
 			}
 
@@ -1122,7 +1122,7 @@ class AdminImport extends AdminTab
 			if (!$res)
 			{
 				$this->_errors[] = $info['alias'].(isset($info['id']) ? ' (ID '.$info['id'].')' : '').' '.Tools::displayError('Cannot be saved');
-				$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').mysql_error();
+				$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').Db::getInstance()->getMsgError();
 			}
 		}
 		$this->closeCsvFile($handle);
@@ -1172,8 +1172,8 @@ class AdminImport extends AdminTab
 
 			if (!$res)
 			{
-				$this->_errors[] = mysql_error().' '.$info['name'].(isset($info['id']) ? ' (ID '.$info['id'].')' : '').' '.Tools::displayError('Cannot be saved');
-				$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').mysql_error();
+				$this->_errors[] = Db::getInstance()->getMsgError().' '.$info['name'].(isset($info['id']) ? ' (ID '.$info['id'].')' : '').' '.Tools::displayError('Cannot be saved');
+				$this->_errors[] = ($fieldError !== true ? $fieldError : '').($langFieldError !== true ? $langFieldError : '').Db::getInstance()->getMsgError();
 			}
 		}
 		$this->closeCsvFile($handle);
@@ -1203,7 +1203,7 @@ class AdminImport extends AdminTab
 					$res = $supplier->add();
 
 				if (!$res)
-					$this->_errors[] = mysql_error().' '.$info['name'].(isset($info['id']) ? ' (ID '.$info['id'].')' : '').' '.Tools::displayError('Cannot be saved');
+					$this->_errors[] = Db::getInstance()->getMsgError().' '.$info['name'].(isset($info['id']) ? ' (ID '.$info['id'].')' : '').' '.Tools::displayError('Cannot be saved');
 				else
 				{
 					// Associate supplier to group shop
diff --git a/admin-dev/tabs/AdminTaxRulesGroup.php b/admin-dev/tabs/AdminTaxRulesGroup.php
index 762b935ca..4fffd0103 100755
--- a/admin-dev/tabs/AdminTaxRulesGroup.php
+++ b/admin-dev/tabs/AdminTaxRulesGroup.php
@@ -541,7 +541,7 @@ class AdminTaxRulesGroup extends AdminTab
 						$object = new $this->className();
 						$this->copyFromPost($object, $this->table);
 						if (!$object->add())
-							$this->_errors[] = Tools::displayError('An error occurred while creating object.').' <b>'.$this->table.' ('.mysql_error().')</b>';
+							$this->_errors[] = Tools::displayError('An error occurred while creating object.').' <b>'.$this->table.' ('.Db::getInstance()->getMsgError().')</b>';
 						elseif (($_POST[$this->identifier] = $object->id /* voluntary */) AND $this->postImage($object->id) AND !sizeof($this->_errors) AND $this->_redirect)
 						{
 							$parent_id = (int)(Tools::getValue('id_parent', 1));
diff --git a/classes/AdminTab.php b/classes/AdminTab.php
index 00c72a074..a93bad724 100644
--- a/classes/AdminTab.php
+++ b/classes/AdminTab.php
@@ -712,7 +712,7 @@ abstract class AdminTabCore
 						$object = new $this->className();
 						$this->copyFromPost($object, $this->table);
 						if (!$object->add())
-							$this->_errors[] = Tools::displayError('An error occurred while creating object.').' <b>'.$this->table.' ('.mysql_error().')</b>';
+							$this->_errors[] = Tools::displayError('An error occurred while creating object.').' <b>'.$this->table.' ('.Db::getInstance()->getMsgError().')</b>';
 						elseif (($_POST[$this->identifier] = $object->id /* voluntary */) AND $this->postImage($object->id) AND !sizeof($this->_errors) AND $this->_redirect)
 						{
 							$parent_id = (int)(Tools::getValue('id_parent', 1));
diff --git a/classes/MySQL.php b/classes/MySQL.php
index 40fb166e7..894c5081c 100644
--- a/classes/MySQL.php
+++ b/classes/MySQL.php
@@ -204,7 +204,7 @@ class MySQLCore extends Db
 			return mysql_insert_id($this->_link);
 		return false;
 	}
-	
+
 	public function	Affected_Rows()
 	{
 		if ($this->_link)
@@ -228,11 +228,10 @@ class MySQLCore extends Db
 		}
 		return false;
 	}
-	
+
 	/**
 	 * Returns the text of the error message from previous MySQL operation
 	 *
-	 * @acces public
 	 * @return string error
 	 */
 	public function getMsgError($query = false)
diff --git a/install-dev/php/price_converter.php b/install-dev/php/price_converter.php
index 1bf1db474..1c24dcef1 100644
--- a/install-dev/php/price_converter.php
+++ b/install-dev/php/price_converter.php
@@ -34,7 +34,7 @@ function convert_product_price()
 		$taxRates[$data['id_tax']] = (float)($data['rate']) / 100;
 	$resource = DB::getInstance()->ExecuteS('SELECT `id_product`, `price`, `id_tax` FROM `'._DB_PREFIX_.'product`', false);
 	if (!$resource)
-		die(mysql_error());
+		die(Db::getInstance()->getMsgError());
 	while ($row = DB::getInstance()->nextRow($resource))
 		if ($row['id_tax'])
 		{