Update DateTimeType.php

src/Database/Type/DateTimeType.php

@@ -196,7 +196,7 @@ class DateTimeType extends Type
             $this->_useLocaleParser = $enable;
             return $this;
         }
-        throw new RuntimeException(
+        throw new \RuntimeException(
             sprintf('Cannot use locale parsing with the %s class', static::$dateTimeClass)
         );
     }