Warning: Unsupported declare 'strict_types' in C:\Apache24\htdocs\drupal\vendor\guzzlehttp\psr7\src\BufferStream.php on line 3

Fatal error: Default value for parameters with a class type hint can only be NULL in C:\Apache24\htdocs\drupal\vendor\guzzlehttp\psr7\src\BufferStream.php on line 32