diff --git a/src/Db/MysqliDb.php b/src/Db/MysqliDb.php
index 9d3c91a..be69e50 100644
--- a/src/Db/MysqliDb.php
+++ b/src/Db/MysqliDb.php
@@ -64,7 +64,7 @@ public function query($query, $params = array())
             if ($this->throwException) {
                 throw new \RuntimeException('DB error in : ' . $query);
             } else {
-                trigger_error('DB error in : ' . $query, E_USER_ERROR);
+                trigger_error('DB error' . ' ' . $this->conn->error . ' ' . _('in') . ': ' . $query, E_USER_ERROR);
                 die(_('DB error') . ' ' . $this->conn->error . ' ' . _('in') . ': ' . $query);
             }
         }
diff --git a/src/User/User.php b/src/User/User.php
index 6a716c8..250a2f8 100644
--- a/src/User/User.php
+++ b/src/User/User.php
@@ -19,7 +19,7 @@ public function __construct(
 
     public function findUserIdByNumber($number)
     {
-        $result = $this->db->query("SELECT userId FROM users WHERE userNumber='$number'");
+        $result = $this->db->query("SELECT userId FROM users WHERE number='$number'");
         if ($result->num_rows == 1) {
             return $result->fetch_assoc()["userId"];
         }
diff --git a/tests/User/UserTest.php b/tests/User/UserTest.php
index 2707617..1b4d70e 100644
--- a/tests/User/UserTest.php
+++ b/tests/User/UserTest.php
@@ -16,7 +16,7 @@ public function testFindUserIdByNumberReturnsUserId()
         $dbMock = $this->createMock(DbInterface::class);
         $dbMock->expects($this->exactly(2))
             ->method('query')
-            ->with("SELECT userId FROM users WHERE userNumber='{$userNumber}'")
+            ->with("SELECT userId FROM users WHERE number='{$userNumber}'")
             ->willReturnOnConsecutiveCalls(
                 new MysqliResult(1, [['userId' => $expectedUserId]]),
                 new MysqliResult(0, [])