Deprecated: Symfony\Component\Mime\Header\AbstractHeader::toTokens(): Implicitly marking parameter $string as nullable is deprecated, the explicit nullable type must be used instead in D:\Webserver\Apache24\htdocs\laravel\basic\vendor\symfony\mime\Header\AbstractHeader.php on line 240

Fatal error: Uncaught Error: Interface "Symfony\Component\Mime\Header\HeaderInterface" not found in D:\Webserver\Apache24\htdocs\laravel\basic\vendor\symfony\mime\Header\AbstractHeader.php:21 Stack trace: #0 {main} thrown in D:\Webserver\Apache24\htdocs\laravel\basic\vendor\symfony\mime\Header\AbstractHeader.php on line 21